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How to use readBuffer method in wpt

Best JavaScript code snippet using wpt

sand.js

Source:sand.js

1const elements = {2    void: {3        red: 0, green: 0, blue: 0,4        density: 0, gravity: 0, slip: 0, slide: 0, scatter: 0,5        reactions: [],6        selfReactions: [],7    },8    wall: {9        red: 0.5, green: 0.5, blue: 0.5,10        density: 1, gravity: 0, slip: 0, slide: 0, scatter: 0,11        immobile: true,12        reactions: [],13        selfReactions: [],14    },15    sand: {16        red: 1.0, green: 0.8, blue: 0.2,17        density: 0.7, gravity: 0.8, slip: 0, slide: 0.8, scatter: 0,18        reactions: [],19        selfReactions: [],20    },21    salt: {22        red: 0.8, green: 0.8, blue: 0.8,23        density: 0.6, gravity: 0.75, slip: 0.05, slide: 0.7, scatter: 0,24        reactions: [],25        selfReactions: [],26    },27    water: {28        red: 0, green: 0.4, blue: 1,29        density: 0.5, gravity: 0.8, slip: 0.95, slide: 0, scatter: 0.35,30        reactions: [],31        selfReactions: [],32    },33    plant: {34        red: 0.2, green: 0.8, blue: 0,35        density: 1, gravity: 0, slip: 0, slide: 0, scatter: 0,36        immobile: true,37        reactions: [],38        selfReactions: [],39    },40    fire: {41        red: 0.9, green: 0.2, blue: 0.1,42        density: -0.5, gravity: -0.2, slip: 0, slide: 0, scatter: 0.8,43        reactions: [],44        selfReactions: [],45    },46    oil: {47        red: 0.6, green: 0.4, blue: 0.15,48        density: 0.4, gravity: 0.75, slip: 0.75, slide: 0, scatter: 0.2,49        reactions: [],50        selfReactions: [],51    },52    nitro: {53        red: 0.1, green: 0.5, blue: 0,54        density: 0.3, gravity: 0.9, slip: 0.5, slide: 0, scatter: 0,55        reactions: [],56        selfReactions: [],57    },58    spout: {59        red: 0.5, green: 0.7, blue: 1.0,60        density: 1, gravity: 0, slip: 0, slide: 0, scatter: 0,61        immobile: true,62        reactions: [],63        selfReactions: [],64    },65    torch: {66        red: 0.4, green: 0.1, blue: 0,67        density: 1, gravity: 0, slip: 0, slide: 0, scatter: 0,68        immobile: true,69        reactions: [],70        selfReactions: [],71    },72    well: {73        red: 0.5, green: 0.3, blue: 0,74        density: 1, gravity: 0, slip: 0, slide: 0, scatter: 0,75        immobile: true,76        reactions: [],77        selfReactions: [],78    },79    saltwater: {80        red: 0.1, green: 0.45, blue: 1,81        density: 0.51, gravity: 0.8, slip: 0.95, slide: 0, scatter: 0.25,82        hidden: true,83        reactions: [],84        selfReactions: [],85    },86    steam: {87        red: 0.3, green: 0.65, blue: 0.8,88        density: -0.2, gravity: -0.2, slip: 0, slide: 0, scatter: 0.4,89        hidden: true,90        reactions: [],91        selfReactions: [],92    },93    glass: {94        red: 0.9, green: 0.92, blue: 0.92,95        density: 1, gravity: 0, slip: 0, slide: 0, scatter: 0,96        immobile: true,97        hidden: true,98        reactions: [],99        selfReactions: [],100    },101};102let elementId = 0;103for(const elementName in elements){104    elements[elementName].id = elementId++;105}106elements.fire.selfReactions.push({107    chance: 0.2,108    becomes: elements.void,109});110elements.fire.reactions.push({111    chance: 0.75,112    becomes: elements.void,113    singleNeighbor: {114        element: elements.void,115        becomes: elements.fire,116        minimum: 1,117        maximum: 6,118        affects: 1,119    },120});121elements.fire.reactions.push({122    chance: 0.85,123    becomes: elements.void,124    singleNeighbor: {125        element: elements.water,126        becomes: elements.steam,127        minimum: 1,128        maximum: 8,129        affects: 4,130    },131});132elements.fire.reactions.push({133    chance: 0.85,134    becomes: elements.fire,135    singleNeighbor: {136        element: elements.plant,137        becomes: elements.fire,138        minimum: 1,139        maximum: 8,140        affects: 4,141    },142});143elements.fire.reactions.push({144    chance: 0.98,145    becomes: elements.fire,146    singleNeighbor: {147        element: elements.oil,148        becomes: elements.fire,149        minimum: 1,150        maximum: 8,151        affects: 5,152    },153});154elements.fire.reactions.push({155    chance: 0.25,156    explosive: 2,157    becomes: elements.fire,158    singleNeighbor: {159        element: elements.nitro,160        becomes: elements.fire,161        minimum: 1,162        maximum: 8,163        affects: 1,164    },165});166elements.fire.reactions.push({167    chance: 0.9,168    explosive: 2,169    becomes: elements.fire,170    singleNeighbor: {171        element: elements.nitro,172        becomes: elements.fire,173        minimum: 1,174        maximum: 8,175        affects: 2,176    },177});178elements.sand.reactions.push({179    chance: 0.45,180    becomes: elements.glass,181    singleNeighbor: {182        element: elements.fire,183        becomes: elements.fire,184        minimum: 2,185        maximum: 8,186        affects: 0,187    },188});189elements.plant.reactions.push({190    chance: 0.007,191    becomes: elements.plant,192    singleNeighbor: {193        element: elements.water,194        becomes: elements.plant,195        minimum: 1,196        maximum: 8,197        affects: 2,198    },199});200elements.plant.reactions.push({201    chance: 0.025,202    becomes: elements.plant,203    singleNeighbor: {204        element: elements.water,205        becomes: elements.void,206        minimum: 1,207        maximum: 8,208        affects: 2,209    },210});211elements.plant.reactions.push({212    chance: 0.2,213    becomes: elements.plant,214    multiNeighbor: [215        {216            element: elements.water,217            becomes: elements.plant,218            minimum: 1,219            maximum: 8,220            affects: 1,221        },222        {223            element: elements.plant,224            becomes: elements.plant,225            minimum: 0,226            maximum: 2,227            affects: 0,228        },229    ],230});231elements.plant.reactions.push({232    chance: 0.2,233    becomes: elements.plant,234    multiNeighbor: [235        {236            element: elements.water,237            becomes: elements.plant,238            minimum: 1,239            maximum: 8,240            affects: 1,241        },242        {243            element: elements.plant,244            becomes: elements.plant,245            minimum: 0,246            maximum: 4,247            affects: 0,248        },249    ],250});251elements.water.reactions.push({252    chance: 0.95,253    becomes: elements.saltwater,254    singleNeighbor: {255        element: elements.salt,256        becomes: elements.void,257        minimum: 1,258        maximum: 8,259        affects: 1,260    },261});262elements.saltwater.reactions.push({263    chance: 0.85,264    becomes: elements.salt,265    singleNeighbor: {266        element: elements.fire,267        becomes: elements.steam,268        minimum: 1,269        maximum: 8,270        affects: 1,271    },272});273elements.steam.selfReactions.push({274    chance: 0.008,275    becomes: elements.water,276});277elements.steam.reactions.push({278    chance: 0.8,279    becomes: elements.water,280    singleNeighbor: {281        element: elements.steam,282        becomes: elements.water,283        minimum: 3,284        maximum: 8,285        affects: 2,286    },287});288elements.steam.reactions.push({289    chance: 0.05,290    becomes: elements.void,291    singleNeighbor: {292        element: elements.void,293        becomes: elements.steam,294        minimum: 1,295        maximum: 8,296        affects: 1,297    },298});299elements.torch.reactions.push({300    chance: 0.75,301    becomes: elements.torch,302    singleNeighbor: {303        element: elements.void,304        becomes: elements.fire,305        minimum: 1,306        maximum: 8,307        affects: 2,308    },309});310elements.torch.reactions.push({311    chance: 0.4,312    becomes: elements.torch,313    singleNeighbor: {314        element: elements.water,315        becomes: elements.steam,316        minimum: 1,317        maximum: 8,318        affects: 1,319    },320});321elements.torch.reactions.push({322    chance: 0.2,323    becomes: elements.torch,324    singleNeighbor: {325        element: elements.oil,326        becomes: elements.fire,327        minimum: 1,328        maximum: 8,329        affects: 2,330    },331});332elements.torch.reactions.push({333    chance: 0.4,334    becomes: elements.torch,335    singleNeighbor: {336        element: elements.nitro,337        becomes: elements.fire,338        minimum: 1,339        maximum: 8,340        affects: 3,341    },342});343elements.spout.reactions.push({344    chance: 0.12,345    becomes: elements.spout,346    singleNeighbor: {347        element: elements.void,348        becomes: elements.water,349        minimum: 1,350        maximum: 8,351        affects: 1,352    },353});354elements.well.reactions.push({355    chance: 0.13,356    becomes: elements.well,357    singleNeighbor: {358        element: elements.void,359        becomes: elements.oil,360        minimum: 1,361        maximum: 7,362        affects: 1,363    },364});365const defaultElement = elements.void;366function shuffleArray(array){367    const newArray = [];368    let i = 0;369    for(const element of array){370        let j = Math.floor(Math.random() * i);371        if(i === j){372            newArray.push(element);373        }else{374            newArray.push(newArray[j]);375            newArray[j] = element;376        }377        i++;378    }379    return newArray;380}381function rgb2hex(red, green, blue){382    return "#" + (383        ("0" + Math.floor(red * 255).toString(16)).slice(-2) +384        ("0" + Math.floor(green * 255).toString(16)).slice(-2) +385        ("0" + Math.floor(blue * 255).toString(16)).slice(-2)386    );387}388function nextPow2(n){389    return Math.pow(2, Math.ceil(Math.log2(n)));390}391function newBuffer(width, height, fill){392    const buffer = [];393    buffer.width = width;394    buffer.height = height;395    for(let i = 0; i < width * height; i++){396        buffer.push(fill);397    }398    return buffer;399}400function newTexture(gl, pixels){401    return twgl.createTexture(gl, {402        target: gl.TEXTURE_2D,403        width: pixels.width,404        height: pixels.height,405        minMag: gl.NEAREST,406        internalFormat: gl.RGB,407        format: gl.RGB,408        wrap: gl.CLAMP_TO_EDGE,409        src: pixels,410    });411}412function newPixelData(buffer){413    const textureWidth = nextPow2(buffer.width);414    const textureHeight = nextPow2(buffer.height);415    const pixels = new Uint8Array(textureWidth * textureHeight * 3);416    pixels.width = textureWidth;417    pixels.height = textureHeight;418    return blitPixelData(pixels, buffer);419}420function blitPixelData(pixels, buffer){421    let j = 0;422    for(let i = 0; i < buffer.length; i++){423        pixels[j++] = Math.floor(buffer[i].red * 255);424        pixels[j++] = Math.floor(buffer[i].green * 255);425        pixels[j++] = Math.floor(buffer[i].blue * 255);426        if(i % buffer.width === buffer.width - 1){427            j += (pixels.width - buffer.width) * 3;428        }429    }430    return pixels;431}432function updateBuffers(timestamp, timeBuffer, readBuffer, writeBuffer){433    const allNeighbors = [434        -readBuffer.width - 1,435        -readBuffer.width,436        -readBuffer.width + 1,437        -1,438        +1,439        +readBuffer.width - 1,440        +readBuffer.width,441        +readBuffer.width + 1,442    ];443    const westEdgeNeighbors = [444        -readBuffer.width,445        -readBuffer.width + 1,446        +1,447        +readBuffer.width,448        +readBuffer.width + 1,449    ];450    const eastEdgeNeighbors = [451        -readBuffer.width - 1,452        -readBuffer.width,453        -1,454        +readBuffer.width - 1,455        +readBuffer.width,456    ];457    allNeighbors.randomOrder = [458        shuffleArray(allNeighbors),459        shuffleArray(allNeighbors),460        shuffleArray(allNeighbors),461        shuffleArray(allNeighbors),462        shuffleArray(allNeighbors),463        shuffleArray(allNeighbors),464    ];465    westEdgeNeighbors.randomOrder = [466        shuffleArray(westEdgeNeighbors),467        shuffleArray(westEdgeNeighbors),468        shuffleArray(westEdgeNeighbors),469        shuffleArray(westEdgeNeighbors),470        shuffleArray(westEdgeNeighbors),471        shuffleArray(westEdgeNeighbors),472    ];473    eastEdgeNeighbors.randomOrder = [474        shuffleArray(eastEdgeNeighbors),475        shuffleArray(eastEdgeNeighbors),476        shuffleArray(eastEdgeNeighbors),477        shuffleArray(eastEdgeNeighbors),478        shuffleArray(eastEdgeNeighbors),479        shuffleArray(eastEdgeNeighbors),480    ];481    let neighborOrderIndex = 0;482    const mode = timestamp % 2;483    const increment = mode ? -1 : +1;484    const totalCells = readBuffer.width * readBuffer.height;485    let i = mode * (totalCells - 1);486    let west = i - 1;487    let east = i + 1;488    let north = i - readBuffer.width;489    let south = i + readBuffer.width;490    // for(let j = 0; j < readBuffer.length; j++){491    //     writeBuffer[j] = readBuffer[j];492    // }493    while(i >= 0 && i < totalCells){494        let random = Math.random();495        if(timeBuffer[i] === timestamp){496            i += increment;497            north += increment;498            south += increment;499            east += increment;500            west += increment;501            continue;502        };503        const cell = readBuffer[i];504        const northwest = north - 1;505        const northeast = north + 1;506        const southwest = south - 1;507        const southeast = south + 1;508        const inRow = i % readBuffer.width;509        const westEdge = inRow === 0;510        const eastEdge = inRow === readBuffer.width - 1;511        const slipRandom = Math.random();512        if(cell.gravity > 0 && south < totalCells &&513            !readBuffer[south].immobile &&514            cell.density > readBuffer[south].density515        ){516            if(timeBuffer[south] < timestamp && cell.gravity > random){517                writeBuffer[i] = readBuffer[south];518                writeBuffer[south] = cell;519                timeBuffer[i] = timestamp;520                timeBuffer[south] = timestamp;521            }522            random = Math.random();523        }else if(cell.gravity < 0 && north >= 0 &&524            !readBuffer[north].immobile &&525            cell.density < readBuffer[north].density526        ){527            if(timeBuffer[north] < timestamp && cell.gravity < -random){528                writeBuffer[i] = readBuffer[north];529                writeBuffer[north] = cell;530                timeBuffer[i] = timestamp;531                timeBuffer[north] = timestamp;532            }533            random = Math.random();534        }else if(cell.gravity && cell.slide > random){535            const westStep = cell.gravity > 0 ? southwest : northwest;536            const eastStep = cell.gravity > 0 ? southeast : northeast;537            const westAllowed = !westEdge && (538                westStep >= 0 && westStep < totalCells &&539                !readBuffer[westStep].immobile && (cell.gravity > 0 ?540                    cell.density > readBuffer[westStep].density :541                    cell.density < readBuffer[westStep].density542                )543            );544            const eastAllowed = !eastEdge && (545                eastStep >= 0 && eastStep < totalCells &&546                !readBuffer[eastStep].immobile && (cell.gravity > 0 ?547                    cell.density > readBuffer[eastStep].density :548                    cell.density < readBuffer[eastStep].density549                )550            );551            if(westAllowed && (!eastAllowed || Math.random() < 0.5)){552                writeBuffer[i] = readBuffer[westStep];553                writeBuffer[westStep] = cell;554                timeBuffer[i] = timestamp;555                timeBuffer[westStep] = timestamp;556            }else if(eastAllowed){557                writeBuffer[i] = readBuffer[eastStep];558                writeBuffer[eastStep] = cell;559                timeBuffer[i] = timestamp;560                timeBuffer[eastStep] = timestamp;561            }562            random = Math.random();563        }else if(cell.slip > slipRandom && (564            (cell.gravity > 0 && south < totalCells && timeBuffer[south] < timestamp - 2) ||565            (cell.gravity < 0 && north >= 0 && timeBuffer[north] < timestamp - 2)566        )){567            const westBound = i - (i % readBuffer.width);568            const eastBound = westBound + readBuffer.width - 1;569            let westCell = i;570            let eastCell = i;571            let westStep = cell.gravity > 0 ? south : north;572            let eastStep = westStep;573            let westUnder = westStep + readBuffer.width;574            let eastUnder = westUnder;575            let westOpen = false;576            let eastOpen = false;577            let lastWest = 0;578            let lastEast = 0;579            if(cell.gravity > 0){580                while(westCell > westBound && westStep < totalCells - 1){581                    westCell--; westStep--; westUnder--;582                    if(583                        readBuffer[westCell].immobile ||584                        cell.density < readBuffer[westCell].density585                    ) break;586                    if(587                        !readBuffer[westStep].immobile &&588                        cell.density > readBuffer[westStep].density589                    ){590                        if(timeBuffer[westStep] < timestamp){591                            westOpen = true;592                            lastWest = westStep;593                        }594                        if(Math.random() < 0.25 || (595                            westUnder < totalCells &&596                            !readBuffer[westUnder].immobile && 597                            cell.density > readBuffer[westUnder].density598                        )) break;599                    }600                }601                while(eastCell < eastBound && eastStep < totalCells - 1){602                    eastCell++; eastStep++; eastUnder++;603                    if(604                        readBuffer[eastCell].immobile ||605                        cell.density < readBuffer[eastCell].density606                    ) break;607                    if(608                        !readBuffer[eastStep].immobile &&609                        cell.density > readBuffer[eastStep].density610                    ){611                        if(timeBuffer[eastStep] < timestamp){612                            eastOpen = true;613                            lastEast = eastStep;614                        }615                        if(Math.random() < 0.25 || (616                            eastUnder < totalCells &&617                            !readBuffer[eastUnder].immobile && 618                            cell.density > readBuffer[eastUnder].density619                        )) break;620                    }621                }622            }else{623                // TODO624            }625            let swapTarget;626            if(westOpen && eastOpen){627                swapTarget = Math.random() < 0.5 ? lastWest : lastEast;628            }else if(westOpen){629                swapTarget = lastWest;630            }else if(eastOpen){631                swapTarget = lastEast;632            }633            if(swapTarget !== undefined){634                writeBuffer[i] = readBuffer[swapTarget];635                writeBuffer[swapTarget] = cell;636                timeBuffer[i] = timestamp;637                timeBuffer[swapTarget] = timestamp;638            }639            random = Math.random();640        }else if(cell.scatter > random){641            const westAllowed = !westEdge && (642                timeBuffer[west] < timestamp &&643                !readBuffer[west].immobile && (cell.gravity > 0 ?644                    cell.density >= readBuffer[west].density :645                    cell.density <= readBuffer[west].density646                )647            );648            const eastAllowed = !eastEdge && (649                timeBuffer[east] < timestamp &&650                !readBuffer[east].immobile && (cell.gravity > 0 ?651                    cell.density >= readBuffer[east].density :652                    cell.density <= readBuffer[east].density653                )654            );655            if(westAllowed && (!eastAllowed || Math.random() < 0.5)){656                writeBuffer[i] = readBuffer[west];657                writeBuffer[west] = cell;658                timeBuffer[i] = timestamp;659                timeBuffer[west] = timestamp;660            }else if(eastAllowed){661                writeBuffer[i] = readBuffer[east];662                writeBuffer[east] = cell;663                timeBuffer[i] = timestamp;664                timeBuffer[east] = timestamp;665            }666            random = Math.random();667        }668        if(timeBuffer[i] < timestamp){669            writeBuffer[i] = readBuffer[i];670            if(cell.reactions.length){671                const neighbors = [];672                if(north >= 0) neighbors[readBuffer[north].id] = (673                    (neighbors[readBuffer[north].id] || 0) + 1674                );675                if(south < totalCells) neighbors[readBuffer[south].id] = (676                    (neighbors[readBuffer[south].id] || 0) + 1677                );678                if(!westEdge){679                    if(northwest >= 0) neighbors[readBuffer[northwest].id] = (680                        (neighbors[readBuffer[northwest].id] || 0) + 1681                    );682                    if(west >= 0) neighbors[readBuffer[west].id] = (683                        (neighbors[readBuffer[west].id] || 0) + 1684                    );685                    if(southwest < totalCells) neighbors[readBuffer[southwest].id] = (686                        (neighbors[readBuffer[southwest].id] || 0) + 1687                    );688                }689                if(!eastEdge){690                    if(northeast >= 0) neighbors[readBuffer[northeast].id] = (691                        (neighbors[readBuffer[northeast].id] || 0) + 1692                    );693                    if(southeast < totalCells) neighbors[readBuffer[southeast].id] = (694                        (neighbors[readBuffer[southeast].id] || 0) + 1695                    );696                    if(east < totalCells) neighbors[readBuffer[east].id] = (697                        (neighbors[readBuffer[east].id] || 0) + 1698                    );699                }700                for(const reaction of cell.reactions){701                    if(reaction.singleNeighbor && reaction.chance > random){702                        const actual = neighbors[reaction.singleNeighbor.element.id];703                        if(704                            actual >= reaction.singleNeighbor.minimum &&705                            actual <= reaction.singleNeighbor.maximum706                        ){707                            writeBuffer[i] = reaction.becomes;708                            timeBuffer[i] = timestamp;709                            if(reaction.explosive){710                                let expWest = west;711                                let expEast = east;712                                let expNorth = north;713                                let expSouth = south;714                                for(let exp = 0; exp <= reaction.explosive; exp++){715                                    if(expWest >= 0 && !westEdge){716                                        writeBuffer[expWest] = reaction.becomes;717                                        timeBuffer[expWest] = timestamp;718                                        if(expWest % readBuffer.width === 0) break;719                                        expWest--;720                                    }721                                    if(expEast < totalCells && !eastEdge){722                                        writeBuffer[expEast] = reaction.becomes;723                                        timeBuffer[expEast] = timestamp;724                                        if(expEast % readBuffer.width === readBuffer.width - 1) break;725                                        expEast++;726                                    }727                                    if(expNorth >= 0){728                                        writeBuffer[expNorth] = reaction.becomes;729                                        timeBuffer[expNorth] = timestamp;730                                        expNorth -= readBuffer.width;731                                    }732                                    if(expSouth < totalCells){733                                        writeBuffer[expSouth] = reaction.becomes;734                                        timeBuffer[expSouth] = timestamp;735                                        expSouth += readBuffer.height;736                                    }737                                }738                            }else{739                                const whichNeighbors = (westEdge ?740                                    westEdgeNeighbors : (eastEdge ? eastEdgeNeighbors : allNeighbors)741                                );742                                const neighborIndexes = whichNeighbors.randomOrder[neighborOrderIndex++];743                                if(neighborOrderIndex >= whichNeighbors.randomOrder.length){744                                    neighborOrderIndex = 0;745                                }746                                let changed = 0;747                                for(let j = 0; j < 8 && changed < reaction.singleNeighbor.affects; j++){748                                    const index = i + neighborIndexes[j];749                                    if(750                                        index >= 0 && index < readBuffer.length &&751                                        readBuffer[index] === reaction.singleNeighbor.element752                                    ){753                                        writeBuffer[index] = reaction.singleNeighbor.becomes;754                                        timeBuffer[index] = timestamp;755                                        changed++;756                                    }757                                }758                                break;759                            }760                        }761                    }else if(reaction.multiNeighbor && reaction.chance > random){762                        let match = true;763                        for(const thisNeighbor of reaction.multiNeighbor){764                            const actual = neighbors[thisNeighbor.element.id];765                            if(766                                actual < thisNeighbor.minimum ||767                                actual > thisNeighbor.maximum768                            ){769                                match = false;770                                break;771                            }772                        }773                        if(match) for(const thisNeighbor of reaction.multiNeighbor){774                            writeBuffer[i] = reaction.becomes;775                            timeBuffer[i] = timestamp;776                            const whichNeighbors = (westEdge ?777                                westEdgeNeighbors : (eastEdge ? eastEdgeNeighbors : allNeighbors)778                            );779                            const neighborIndexes = whichNeighbors.randomOrder[neighborOrderIndex++];780                            if(neighborOrderIndex >= whichNeighbors.randomOrder.length){781                                neighborOrderIndex = 0;782                            }783                            let changed = 0;784                            for(let j = 0; j < 8 && changed < thisNeighbor.affects; j++){785                                const index = i + neighborIndexes[j];786                                if(787                                    index >= 0 && index < readBuffer.length &&788                                    readBuffer[index] === thisNeighbor.element789                                ){790                                    writeBuffer[index] = thisNeighbor.becomes;791                                    timeBuffer[index] = timestamp;792                                    changed++;793                                }794                            }795                            break;796                        }797                    }798                    random = Math.random()799                }800            }801            if(cell.selfReactions.length && timeBuffer[i] < timestamp){802                for(const reaction of cell.selfReactions){803                    if(reaction.chance > random){804                        writeBuffer[i] = reaction.becomes;805                        timeBuffer[i] = timestamp;806                    }807                    random = Math.random();808                }809            }810        }811        i += increment;812        north += increment;813        south += increment;814        east += increment;815        west += increment;816    }817}818const vertexShader = `819    precision mediump float;820    attribute vec2 a_position;821    varying vec2 v_position;822    void main(){823        v_position = a_position;824        gl_Position = vec4(825            a_position.x * 2.0 - 1.0, v_position.y * -2.0 + 1.0, 0.0, 1.0826        );827    }828`;829const fragmentShader = `830    precision mediump float;831    uniform sampler2D u_texture;832    varying vec2 v_position;833    void main(){834        gl_FragColor = texture2D(u_texture, v_position);835    }836`;837function begin(){838    const canvas = document.getElementById("glCanvas");839    canvas.width = canvas.clientWidth;840    canvas.height = canvas.clientHeight;841    const gl = twgl.getWebGLContext(canvas, {842        alpha: false,843        antialias: false,844        depth: false,845        stencil: false,846    });847    twgl.setDefaults({848        textureColor: [0, 0, 0, 1],849        attribPrefix: "a_",850    });851    852    gl.enable(gl.CULL_FACE);853    gl.clearColor(0, 0, 0, 1);854    855    const bufferWidth = 128;856    const bufferHeight = 128;857    858    let currentBuffer = newBuffer(bufferWidth, bufferHeight, defaultElement);859    let reserveBuffer = newBuffer(bufferWidth, bufferHeight, defaultElement);860    const timeBuffer = newBuffer(bufferWidth, bufferHeight, 0);861    862    const pixels = newPixelData(currentBuffer);863    const texture = newTexture(gl, pixels);864    865    const programInfo = twgl.createProgramInfo(gl, [866        vertexShader, fragmentShader,867    ]);868    gl.useProgram(programInfo.program);869    twgl.setUniforms(programInfo, {870        u_texture: texture,871    });872    873    const bufferInfo = twgl.createBufferInfoFromArrays(gl, {874        position: {875            numComponents: 2, data: [0, 0, 0, 1, 1, 0, 1, 1]876        },877    });878    879    let frame = 1;880    881    // http://stackoverflow.com/questions/381795/how-to-disable-right-click-context-menu-in-javascript882    canvas.addEventListener("contextmenu", function(event){883        if(event.preventDefault) event.preventDefault();884        if(event.stopPropagation) event.stopPropagation();885        return false;886    });887    888    let drawing = false;889    let selectedElement = elements.wall;890    891    let lastMouseEvent = undefined;892    function drawAtMouse(event){893        const rect = canvas.getBoundingClientRect();894        const x = (event.clientX - rect.left) / rect.width;895        const y = (event.clientY - rect.top) / rect.height;896        if(x >= 0 && y >= 0 && x < 1 && y < 1){897            const i = Math.floor(x * bufferWidth);898            const j = Math.floor(y * bufferHeight);899            for(let brushX = -2; brushX < 2; brushX++){900                for(let brushY = -2; brushY < 2; brushY++){901                    const drawX = i + brushX;902                    const drawY = j + brushY;903                    if(drawX >= 0 && drawY >= 0 && drawX < bufferWidth && drawY < bufferHeight){904                        currentBuffer[drawX + drawY * bufferWidth] = selectedElement;905                    }906                }907            }908        }909    }910    911    canvas.addEventListener("mousedown", function(event){912        drawing = true;913        lastMouseEvent = event;914    }, false);915    canvas.addEventListener("mousemove", function(event){916        lastMouseEvent = event;917    }, false);918    canvas.addEventListener("mouseup", function(event){919        drawing = false;920    }, false);921    canvas.addEventListener("mouseout", function(event){922        drawing = false;923    }, false);924    925    const elementButtons = [];926    for(const elementName in elements){927        const element = elements[elementName];928        if(!element.hidden){929            const button = document.createElement("div");930            elementButtons.push(button);931            const label = document.createTextNode(elementName);932            button.appendChild(label);933            const hex = rgb2hex(element.red * 0.5, element.green * 0.5, element.blue * 0.5);934            button.classList.add("elementButton");935            button.style = `background-color: ${hex};`;936            document.getElementById("elementButtons").appendChild(button);937            button.onclick = function(event){938                selectedElement = element;939                for(const other of elementButtons){940                    other.classList.remove("elementButtonSelected");941                }942                button.classList.add("elementButtonSelected");943            }944        }945    }946    947    const update = () => {948        // Draw to buffer949        if(drawing) drawAtMouse(lastMouseEvent);950        // Update game state951        updateBuffers(frame, timeBuffer, currentBuffer, reserveBuffer)952        const tempBuffer = currentBuffer;953        currentBuffer = reserveBuffer;954        reserveBuffer = tempBuffer;955        // Update texture956        blitPixelData(pixels, currentBuffer);957        gl.bindTexture(gl.TEXTURE_2D, texture);958        gl.texSubImage2D(959            gl.TEXTURE_2D, 0, 0, 0, bufferWidth, bufferHeight,960            gl.RGB, gl.UNSIGNED_BYTE, pixels961        );962        // Render963        twgl.setBuffersAndAttributes(gl, programInfo, bufferInfo);964        twgl.drawBufferInfo(gl, bufferInfo, gl.TRIANGLE_STRIP);965        // Ready for next frame966        requestAnimationFrame(update);967        frame++;968    };969    970    requestAnimationFrame(update);971}...

sandboxed_FileSystemSyncAccessHandle-read-write.https.tentative.worker.js

Source:sandboxed_FileSystemSyncAccessHandle-read-write.https.tentative.worker.js

1importScripts("/resources/testharness.js");2importScripts('resources/sync-access-handle-test.js');3'use strict';4sync_access_handle_test((t, handle) => {5  const readBuffer = new Uint8Array(24);6  const readBytes = handle.read(readBuffer, {at: 0});7  assert_equals(0, readBytes, 'Check that no bytes were read');8}, 'Test reading an empty file through a sync access handle.');9sync_access_handle_test((t, handle) => {10  if (!('TextEncoder' in self)) {11    return;12  }13  const encoder = new TextEncoder();14  const decoder = new TextDecoder();15  const text = 'Hello Storage Foundation';16  const writeBuffer = new TextEncoder().encode(text);17  const writtenBytes = handle.write(writeBuffer, {at: 0});18  assert_equals(19      writeBuffer.byteLength, writtenBytes,20      'Check that all bytes were written.');21  let readBuffer = new Uint8Array(writtenBytes);22  let readBytes = handle.read(readBuffer, {at: 0});23  assert_equals(writtenBytes, readBytes, 'Check that all bytes were read');24  assert_equals(25      text, new TextDecoder().decode(readBuffer),26      'Check that the written bytes and the read bytes match');27  // Test a read of less bytes than available.28  const expected = 'Storage';29  readBuffer = new Uint8Array(expected.length);30  readBytes = handle.read(readBuffer, {at: text.indexOf(expected)});31  assert_equals(readBuffer.length, readBytes, 'Check that all bytes were read');32  const actual = new TextDecoder().decode(readBuffer);33  assert_equals(34      expected, actual,35      'Partial read returned unexpected contents');36}, 'Test writing and reading through a sync access handle.');37sync_access_handle_test((t, handle) => {38  if (!('TextEncoder' in self)) {39    return;40  }41  const encoder = new TextEncoder();42  const decoder = new TextDecoder();43  for (text of ['Hello', 'Longer Text']) {44    const writeBuffer = new TextEncoder().encode(text);45    const writtenBytes = handle.write(writeBuffer, {at: 0});46    assert_equals(47        writeBuffer.byteLength, writtenBytes,48        'Check that all bytes were written.');49    const readBuffer = new Uint8Array(writtenBytes);50    const readBytes = handle.read(readBuffer, {at: 0});51    assert_equals(writtenBytes, readBytes, 'Check that all bytes were read');52    assert_equals(53        text, new TextDecoder().decode(readBuffer),54        'Check that the written bytes and the read bytes match');55  }56}, 'Test second write that is bigger than the first write');57sync_access_handle_test((t, handle) => {58  if (!('TextEncoder' in self)) {59    return;60  }61  const encoder = new TextEncoder();62  const decoder = new TextDecoder();63  for (tuple64           of [{input: 'Hello World', expected: 'Hello World'},65               {input: 'foobar', expected: 'foobarWorld'}]) {66    const text = tuple.input;67    const expected = tuple.expected;68    const writeBuffer = new TextEncoder().encode(text);69    const writtenBytes = handle.write(writeBuffer, {at: 0});70    assert_equals(71        writeBuffer.byteLength, writtenBytes,72        'Check that all bytes were written.');73    const readBuffer = new Uint8Array(expected.length);74    const readBytes = handle.read(readBuffer, {at: 0});75    assert_equals(expected.length, readBytes, 'Check that all bytes were read');76    assert_equals(77        expected, new TextDecoder().decode(readBuffer),78        'Check that the written bytes and the read bytes match');79  }80}, 'Test second write that is smaller than the first write');81sync_access_handle_test((t, handle) => {82  const expected = 17;83  const writeBuffer = new Uint8Array(1);84  writeBuffer[0] = expected;85  const offset = 5;86  const writtenBytes = handle.write(writeBuffer, {at: offset});87  assert_equals(88      writeBuffer.byteLength, writtenBytes,89      'Check that all bytes were written.');90  const fileLength = writeBuffer.byteLength + offset;91  const readBuffer = new Uint8Array(fileLength);92  const readBytes = handle.read(readBuffer, {at: 0});93  assert_equals(fileLength, readBytes, 'Check that all bytes were read');94  for (let i = 0; i < offset; ++i) {95    assert_equals(96        readBuffer[i], 0,97        `Gaps in the file should be filled with 0, but got ${readBuffer[i]}.`);98  }99  assert_equals(100      readBuffer[offset], expected,101      'Gaps in the file should be filled with 0.');102}, 'Test initial write with an offset');103sync_access_handle_test((t, handle) => {104  if (!('TextEncoder' in self)) {105    return;106  }107  const encoder = new TextEncoder();108  const decoder = new TextDecoder();109  for (tuple110           of [{input: 'Hello World', expected: 'Hello World', offset: 0},111               {input: 'foobar', expected: 'Hello foobar', offset: 6}]) {112    const text = tuple.input;113    const expected = tuple.expected;114    const offset = tuple.offset;115    const writeBuffer = new TextEncoder().encode(text);116    const writtenBytes = handle.write(writeBuffer, {at: offset});117    assert_equals(118        writeBuffer.byteLength, writtenBytes,119        'Check that all bytes were written.');120    const readBuffer = new Uint8Array(expected.length);121    const readBytes = handle.read(readBuffer, {at: 0});122    assert_equals(expected.length, readBytes, 'Check that all bytes were read');123    const actual = new TextDecoder().decode(readBuffer);124    assert_equals(125        expected, actual,126        'Check content read from the handle');127  }128}, 'Test overwriting the file at an offset');129sync_access_handle_test((t, handle) => {130  if (!('TextEncoder' in self)) {131    return;132  }133  const encoder = new TextEncoder();134  const decoder = new TextDecoder();135  const text = 'Hello Storage Foundation';136  const writeBuffer = new TextEncoder().encode(text);137  const writtenBytes = handle.write(writeBuffer, {at: 0});138  assert_equals(139      writeBuffer.byteLength, writtenBytes,140      'Check that all bytes were written.');141  const bufferLength = text.length;142  for (tuple143           of [{offset: 0, expected: text},144               {offset: 6, expected: text.substring(6)}]) {145    const offset = tuple.offset;146    const expected = tuple.expected;147    const readBuffer = new Uint8Array(bufferLength);148    const readBytes = handle.read(readBuffer, {at: offset});149    assert_equals(expected.length, readBytes, 'Check that all bytes were read');150    const actual = new TextDecoder().decode(readBuffer);151    assert_true(152        actual.startsWith(expected),153        `Expected to read ${expected} but the actual value was ${actual}.`);154  }155  const readBuffer = new Uint8Array(bufferLength);156  // Offset is greater than the file length.157  const readBytes = handle.read(readBuffer, {at: bufferLength + 1});158  assert_equals(0, readBytes, 'Check that no bytes were read');159  for (let i = 0; i < readBuffer.byteLength; ++i) {160    assert_equals(0, readBuffer[i], 'Check that the read buffer is unchanged.');161  }162}, 'Test read at an offset');163sync_access_handle_test((t, handle) => {164  const readBuffer = new Uint8Array(24);165  assert_throws_dom(166    'NotSupportedError', () => handle.read(readBuffer, { at: -1 }));167}, 'Test reading at a negative offset fails.');...

unix-read.test.ts

Source:unix-read.test.ts

1import { BindingsError } from '.'2import { assert, shouldReject } from '../test/assert'3import { LinuxPortBinding } from './linux'4import { unixRead } from './unix-read'5const makeFsRead =6  (bytesRead: number, fill: number): any =>7    (fd: number, buffer: Buffer, offset: number, length: number) => {8      buffer.fill(fill, offset, Math.min(length, bytesRead))9      return {10        buffer,11        bytesRead,12      }13    }14const makeFsReadError = (code: string) => {15  const err = new Error(`Error: ${code}`)16  ;(err as any).code = code17  return () => {18    throw err19  }20}21// eslint-disable-next-line @typescript-eslint/ban-types22const sequenceCalls = (...functions: Function[]) => {23  const funcs = [...functions]24  return (...args: any[]) => {25    const func = funcs.shift()26    if (func) {27      return func(...args)28    } else {29      throw new Error('"sequenceCalls" has no more functions')30    }31  }32}33const makeMockBinding = (): LinuxPortBinding => {34  return {35    isOpen: true,36    fd: 1,37    poller: {38      once(event: any, func: () => void) {39        setImmediate(func)40      },41    },42  } as any43}44describe('unixRead', () => {45  let mock: LinuxPortBinding46  beforeEach(() => {47    mock = makeMockBinding()48  })49  it('rejects when not open', async () => {50    (mock as any).isOpen = false51    const readBuffer = Buffer.alloc(8, 0)52    await shouldReject(unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync: makeFsRead(8, 255) }))53  })54  it('handles reading the requested number of bytes', async () => {55    const readBuffer = Buffer.alloc(8, 0)56    const { bytesRead, buffer } = await unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync: makeFsRead(8, 255) })57    assert.strictEqual(bytesRead, 8)58    assert.strictEqual(buffer, readBuffer)59    assert.deepStrictEqual(buffer, Buffer.alloc(8, 255))60  })61  it('handles reading less than requested number of bytes', async () => {62    const readBuffer = Buffer.alloc(8, 0)63    const { bytesRead, buffer } = await unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync: makeFsRead(4, 255) })64    assert.strictEqual(bytesRead, 4)65    assert.strictEqual(buffer, readBuffer)66    assert.deepStrictEqual(buffer, Buffer.from([255, 255, 255, 255, 0, 0, 0, 0]))67  })68  it('handles reading 0 bytes then requested number of bytes', async () => {69    const readBuffer = Buffer.alloc(8, 0)70    const fsReadAsync = sequenceCalls(makeFsRead(0, 0), makeFsRead(8, 255))71    const { bytesRead, buffer } = await unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync })72    assert.strictEqual(bytesRead, 8)73    assert.strictEqual(buffer, readBuffer)74    assert.deepStrictEqual(buffer, Buffer.alloc(8, 255))75  })76  it('handles retryable errors', async () => {77    const readBuffer = Buffer.alloc(8, 0)78    const fsReadAsync = sequenceCalls(makeFsReadError('EAGAIN'), makeFsReadError('EWOULDBLOCK'), makeFsReadError('EINTR'), makeFsRead(8, 255))79    const { bytesRead, buffer } = await unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync })80    assert.strictEqual(bytesRead, 8)81    assert.strictEqual(buffer, readBuffer)82    assert.deepStrictEqual(buffer, Buffer.alloc(8, 255))83  })84  it('rejects read errors', async () => {85    const readBuffer = Buffer.alloc(8, 0)86    await shouldReject(unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync: makeFsReadError('Error') }))87  })88  it('rejects a canceled error if port closes after read a retryable error', async () => {89    const readBuffer = Buffer.alloc(8, 0)90    const fsReadAsync: any = () => {91      (mock as any).isOpen = false92      makeFsReadError('EAGAIN')()93    }94    const err: BindingsError = await shouldReject(unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync }))95    assert.isTrue(err.canceled)96  })97  it('rejects a disconnected error when fsread errors a disconnect error', async () => {98    const readBuffer = Buffer.alloc(8, 0)99    const fsReadAsync = makeFsReadError('EBADF')100    const err = await shouldReject(unixRead({ binding: mock, buffer: readBuffer, offset: 0, length: 8, fsReadAsync }))101    assert.isTrue(err.disconnect)102  })...

read-buffer.js

Source:read-buffer.js

1module.exports = { ReadBuffer }2/**3 * @param {Buffer} buffer 4 * @param {number} [offset]5 */6function ReadBuffer(buffer, offset) {7  /** @protected */8  this._buf = typeof offset === 'number'9    ? buffer.subarray(offset, buffer.length)10    : buffer;11  /** @protected */12  this._readOffset = 0;13}14Object.defineProperty(ReadBuffer.prototype, 'buffer', {15  get: function () {16    return this._buf;17  },18  enumerable: true,19  configurable: true,20})21Object.defineProperty(ReadBuffer.prototype, 'position', {22  get: function () {23    return this._readOffset;24  },25  enumerable: true,26  configurable: true,27})28Object.defineProperty(ReadBuffer.prototype, 'length', {29  get: function () {30    return this._buf.length;31  },32  enumerable: true,33  configurable: true,34})35/** @param {number} byteOffset */36ReadBuffer.prototype.seek = function seek(byteOffset) {37  this._readOffset += byteOffset;38  return this._readOffset;39}40/** @param {number} [offset] */41ReadBuffer.prototype.readUInt16BE = function readUInt16BE(offset) {42  return this._readNumberValue(this._buf.readUInt16BE, 2, offset)43}44/** @type {ReadBuffer['readUInt16BE']} */45ReadBuffer.prototype.readUint16BE = ReadBuffer.prototype.readUInt16BE;46/** @param {number} [offset] */47ReadBuffer.prototype.readUInt8 = function readUInt8(offset) {48  return this._readNumberValue(this._buf.readUInt8, 1, offset)49}50/**51 * @protected52 * @template T53 * @param {Extract<T, (offset: number) => any>} fn 54 * @param {number} byteSize55 * @param {number} [offset]56 * @return {ReturnType<T>}57 */58ReadBuffer.prototype._readNumberValue = function _readNumberValue(fn, byteSize, offset) {59  if (typeof offset === 'number') {60    return fn.call(this._buf, offset)61  }62  const value = fn.call(this._buf, this._readOffset)63  this._readOffset += byteSize;64  return value;65}66/**67 * @param {BufferEncoding} encoding 68 */69ReadBuffer.prototype.readStringNT = function readStringNT(encoding) {70  let nullPos = this._buf.length;71  for (let i = this._readOffset; i < this._buf.length; ++i) {72    if (this._buf[i] === 0x00) {73      nullPos = i;74      break;75    }76  }77  const value = this._buf.subarray(this._readOffset, this._readOffset + nullPos)78  this._readOffset = nullPos + 1;79  return value.toString(encoding)80}81/**82 * @param {number} byteSize83 * @param {number} [offset]84 */85ReadBuffer.prototype.readArrayBuffer = function readArrayBuffer(byteSize, offset) {86  if (typeof offset === 'number') {87    return this._buf.subarray(offset, offset + byteSize)88  }89  const value = this._buf.subarray(this._readOffset, this._readOffset + byteSize)90  this._readOffset += byteSize;91  return value;...

Using AI Code Generation

1var wpt = require('wpt');2var wpt = new WebPageTest('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef');3wpt.runTest(url, function(err, data) {4  if (err) {5    console.log(err);6  } else {7    var testId = data.data.testId;8    wpt.getTestResults(testId, function(err, data) {9      if (err) {10        console.log(err);11      } else {12        var data = data.data;13        var run = data.runs[1];14        var firstView = run.firstView;15        var requests = firstView.requests;16        var requestsLength = requests.length;17        var i = 0;18        for (i = 0; i < requestsLength; i++) {19          var request = requests[i];20          var url = request.url;21          var mimeType = request.mimeType;22          var responseCode = request.responseCode;23          var response = request.response;24          var responseLength = response.length;25          var j = 0;26          for (j = 0; j < responseLength; j++) {27            var buffer = response[j];28            var bufferLength = buffer.length;29            var k = 0;30            for (k = 0; k < bufferLength; k++) {31              var bufferChar = buffer[k];32            }33          }34        }35      }36    });37  }38});

Using AI Code Generation

1var wpt = require('wpt');2var fs = require('fs');3    if (err) console.log(err);4    fs.writeFile('test.html', data, function(err) {5        if (err) console.log(err);6        console.log('File saved');7    });8});9var wpt = require('wpt');10var fs = require('fs');11    if (err) console.log(err);12    fs.writeFile('test.html', data, function(err) {13        if (err) console.log(err);14        console.log('File saved');15    });16});17var wpt = require('wpt');18var fs = require('fs');19    if (err) console.log(err);20    fs.writeFile('test.html', data, function(err) {21        if (err) console.log(err);22        console.log('File saved');23    });24});25var wpt = require('wpt');26var fs = require('fs');27    if (err) console.log(err);28    fs.writeFile('test.html', data, function(err) {29        if (err) console.log(err);30        console.log('File saved');31    });32});

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2console.log(wptoolkit.readBuffer('test.txt'));3var wptoolkit = require('wptoolkit');4console.log(wptoolkit.readBuffer('test.txt'));5var wptoolkit = require('wptoolkit');6console.log(wptoolkit.readBuffer('test.txt'));7var wptoolkit = require('wptoolkit');8console.log(wptoolkit.readBuffer('test.txt'));9var wptoolkit = require('wptoolkit');10console.log(wptoolkit.readBuffer('test.txt'));11var wptoolkit = require('wptoolkit');12console.log(wptoolkit.readBuffer('test.txt'));13var wptoolkit = require('wptoolkit');14console.log(wptoolkit.readBuffer('test.txt'));15var wptoolkit = require('wptoolkit');16console.log(wptoolkit.readBuffer('test.txt'));17var wptoolkit = require('wptoolkit');18console.log(wptoolkit.readBuffer('test.txt'));19var wptoolkit = require('wptoolkit');20console.log(wptoolkit.readBuffer('test.txt'));21var wptoolkit = require('wptoolkit');22console.log(wptoolkit.readBuffer('test.txt'));23var wptoolkit = require('wptoolkit

Using AI Code Generation

1var wptools = require('wptools');2var page = wptools.page('Barack Obama');3page.readBuffer(function(err, buffer) {4  console.log(buffer);5});6var wptools = require('wptools');7var page = wptools.page('Barack Obama');8var cheerio = require('cheerio');9page.readBuffer(function(err, buffer) {10  var $ = cheerio.load(buffer);11  var $table = $('table.infobox');12  console.log($table.html());13});

Using AI Code Generation

1var wpt = require('wpt');2var fs = require('fs');3var path = require('path');4var filePath = path.join(__dirname, 'test.txt');5var buffer = wpt.readBuffer(filePath);6console.log(buffer.toString());7var wpt = require('wpt');8var fs = require('fs');9var path = require('path');10var filePath = path.join(__dirname, 'test.txt');11var buffer = wpt.readBuffer(filePath);12console.log(buffer.toString());13var wpt = require('wpt');14var fs = require('fs');15var path = require('path');16var filePath = path.join(__dirname, 'test.txt');17var buffer = wpt.readBuffer(filePath);18console.log(buffer.toString());19var wpt = require('wpt');20var fs = require('fs');21var path = require('path');22var filePath = path.join(__dirname, 'test.txt');23var buffer = wpt.readBuffer(filePath);24console.log(buffer.toString());25var wpt = require('wpt');26var fs = require('fs');27var path = require('path');28var filePath = path.join(__dirname, 'test.txt');29var buffer = wpt.readBuffer(filePath);30console.log(buffer.toString());31var wpt = require('wpt');32var fs = require('fs');33var path = require('path');34var filePath = path.join(__

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.