Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use createKeyToOldIdx method in Playwright Internal

Best JavaScript code snippet using playwright-internal

index.js

Source:index.js

...4}5function isDef(s) {6    return s !== undefined;7}8function createKeyToOldIdx(children, beginIdx, endIdx, KEY_P) {9    var i,10        map = {},11        key,12        ch;13    for (i = beginIdx; i <= endIdx; ++i) {14        ch = children[i];15        if (ch != null) {16            key = ch[KEY_P];17            if (key !== undefined) map[key] = i;18        }19    }20    return map;21}22var Types = {23    UPDATE: "UPDATE",24    REPLACE: "REPLACE",25    INSERT: "INSERT",26    MOVE: "MOVE",27    REMOVE: "REMOVE"28};29/**30 *31 * @type {Object} VElement å®ä¾åçVirtualDOMèç¹ï¼éå¸¸å®ä¾åä¼çæçå®çdom32 *33 * @type {Object} VNode æªå®ä¾åçVirtualDOMèç¹34 *35 * @type {Object} Patch36 * @type {Enums<UPDATE|INSERT|MOVE|REMOVE>} Patch.type37 * @type {VElement} Patch.current38 * @type {VNode} Patch.next39 * @type {VElement} Patch.before40 *41 * @param {Array<VElement>} oldCh æ§VirtualDOMåè¡¨42 * @param {Array<VNode>} newCh æ°VirtualDOMåè¡¨43 * @param {Object} options44 * @param {String} options.key45 * @param {Function<VElement, VNode>: Boolean} options.isSameVNode46 * @returns {Array<Patch>}47 */48function virtualDOMDiff(oldCh, newCh, options) {49    options = options || {};50    var KEY_P = options.key || "key";51    var patches = [];52    var oldStartIdx = 0,53        newStartIdx = 0;54    var oldEndIdx = oldCh.length - 1;55    var oldStartVNode = oldCh[0];56    var oldEndVNode = oldCh[oldEndIdx];57    var newEndIdx = newCh.length - 1;58    var newStartVNode = newCh[0];59    var newEndVNode = newCh[newEndIdx];60    var oldKeyToIdx, idxInOld;61    var isSameVNode =62        options.isSameVNode ||63        function(oldItem, newItem) {64            return oldItem === newItem && oldItem[KEY_P] === newItem[KEY_P];65        };66    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {67        if (isUndef(oldStartVNode)) {68            oldStartVNode = oldCh[++oldStartIdx];69        } else if (isUndef(oldEndVNode)) {70            oldEndVNode = oldCh[--oldEndIdx];71        } else if (isSameVNode(oldStartVNode, newStartVNode)) {72            patches.push({73                next: newStartVNode,74                current: oldStartVNode,75                type: Types.UPDATE76            });77            oldStartVNode = oldCh[++oldStartIdx];78            newStartVNode = newCh[++newStartIdx];79        } else if (isSameVNode(oldEndVNode, newEndVNode)) {80            patches.push({81                next: newEndVNode,82                current: oldEndVNode,83                type: Types.UPDATE84            });85            oldEndVNode = oldCh[--oldEndIdx];86            newEndVNode = newCh[--newEndIdx];87        } else if (isSameVNode(oldStartVNode, newEndVNode)) {88            patches.push({89                next: newEndVNode,90                current: oldStartVNode,91                type: Types.UPDATE92            });93            patches.push({94                before: oldCh[oldEndIdx + 1],95                current: oldStartVNode,96                type: Types.MOVE97            });98            oldStartVNode = oldCh[++oldStartIdx];99            newEndVNode = newCh[--newEndIdx];100        } else if (isSameVNode(oldEndVNode, newStartVNode)) {101            patches.push({102                next: newStartVNode,103                current: oldEndVNode,104                type: Types.UPDATE105            });106            patches.push({107                before: oldStartVNode,108                current: oldEndVNode,109                type: Types.MOVE110            });111            oldEndVNode = oldCh[--oldEndIdx];112            newStartVNode = newCh[++newStartIdx];113        } else {114            if (oldKeyToIdx === undefined) {115                oldKeyToIdx = createKeyToOldIdx(116                    oldCh,117                    oldStartIdx,118                    oldEndIdx,119                    KEY_P120                );121            }122            idxInOld = oldKeyToIdx[newStartVNode[KEY_P]];123            if (isUndef(idxInOld) || isUndef(oldCh[idxInOld])) {124                patches.push({125                    before: oldStartVNode,126                    next: newStartVNode,127                    type: Types.INSERT128                });129                newStartVNode = newCh[++newStartIdx];...

patchVNode.js

Source:patchVNode.js

...45                newStartIndex++46                endIndex-- 47            }else{48                if(!oldKeyToIdx){49                    oldKeyToIdx = createKeyToOldIdx(oldVNode.children,startIndex,endIndex)50                }51                idxInOld =newVNode.children[newStartIndex].key ? oldKeyToIdx[newVNode.children[newStartIndex].key]52                : findIdxInOld(newVNode.children[newStartIndex], oldCh, startIndex, endIndex)53                if (!idxInOld) { 54                    const node = createElement(newVNode.children[newStartIndex])55                    oldVNode.elm.insertBefore(node, oldVNode.children[startIndex].elm)56                } else {57                    let vnodeToMove = oldVNode.children[idxInOld]58                    if (sameVNode(oldVNode.children[idxInOld], newVNode.children[newStartIndex])) {59                        patchVNode(oldVNode.children[idxInOld], newVNode.children[newStartIndex])60                        oldCh[idxInOld] = undefined61                        oldVNode.elm.insertBefore(oldVNode.children[i].elm, oldVNode.children[startIndex].elm)62                    } else {63                        const node = createElement(newVNode.children[newStartIndex])...

vval.js

Source:vval.js

...26      vval.vm[k] = vval.args[k];27    });28  }29}30function createKeyToOldIdx(children, beginIdx, endIdx) {31  var i, key;32  var map = {};33  for (i = beginIdx; i <= endIdx; ++i) {34    key = children[i].key;35    if (isDef(key)) map[key] = i;36  }37  return map;38}39function updateChildren(oldCh, newCh) {40  var oldStartIdx = 0;41  var newStartIdx = 0;42  var oldEndIdx = oldCh.length - 1;43  var oldStartVval = oldCh[0];44  var oldEndVval = oldCh[oldEndIdx];45  var newEndIdx = newCh.length - 1;46  var newStartVval = newCh[0];47  var newEndVval = newCh[newEndIdx];48  var oldKeyToIdx, idxInOld, elmToMove;49  while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {50    if (isUndef(oldStartVval)) {51      oldStartVval = oldCh[++oldStartIdx];52    } else if (isUndef(oldEndVval)) {53      oldEndVval = oldCh[--oldEndIdx];54    } else if (sameVval(oldStartVval, newStartVval)) {55      patchVval(oldStartVval, newStartVval);56      oldStartVval = oldCh[++oldStartIdx];57      newStartVval = newCh[++newStartIdx];58    } else if (sameVval(oldEndVval, newEndVval)) {59      patchVval(oldEndVval, newEndVval);60      oldEndVval = oldCh[--oldEndIdx];61      newEndVval = newCh[--newEndIdx];62    } else if (sameVval(oldStartVval, newEndVval)) {63      patchVval(oldStartVval, newEndVval);64      oldStartVval = oldCh[++oldStartIdx];65      newEndVval = newCh[--newEndIdx];66    } else if (sameVval(oldEndVval, newStartVval)) {67      patchVval(oldEndVval, newStartVval);68      oldEndVval = oldCh[--oldEndIdx];69      newStartVval = newCh[++newStartIdx];70    } else {71      if (isUndef(oldKeyToIdx)) oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);72      idxInOld = isDef(newStartVval.key) ? oldKeyToIdx[newStartVval.key] : null;73      if (isUndef(idxInOld)) {74        createVm(newStartVval);75        newStartVval = newCh[++newStartIdx];76      } else {77        elmToMove = oldCh[idxInOld];78        if (sameVval(elmToMove, newStartVval)) {79          patchVval(elmToMove, newStartVval);80          oldCh[idxInOld] = undefined;81          newStartVval = newCh[++newStartIdx];82        } else {83          createVm(newStartVval);84          newStartVval = newCh[++newStartIdx];85        }...

updateChildren.js

Source:updateChildren.js

...30            newStartVnode = newCh[++newStartIdx];31        } else {32            let elmToMove = oldCh[idxInOld];33            if (!oldKeyToIdx) {34                oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);35            }36            idxInOld = newStartVnode.key ? oldKeyToIdx[newStartVnode.key] : null;37            if (!idxInOld) {38                createElm(newStartVnode, parentElm);39                newStartVnode = newCh[++newStartIdx];40            } else {41                elmToMove = oldCh[idxInOld];42                if (sameVnode(elmToMove, newStartVnode)){43                    patchVnode(elmToMove, newStartVnode);44                    oldCh[idxInOld] = undefined;45                    nodeOps.insertBefore(parentElm, newStartVnode.elm, oldStartVnode.elm);46                    newStartVnode = newCh[++newStartIdx];47                } else {48                    createElm(newStartVnode, parentElm);...

utils.dev.js

Source:utils.dev.js

...31}32function isDef(v) {33  return v !== undefined && v !== null;34}35function createKeyToOldIdx(children, beginIdx, endIdx) {36  var i, key;37  var map = {};38  for (i = beginIdx; i <= endIdx; ++i) {39    key = children[i].key;40    if (isDef(key)) map[key] = i;41  }42  return map;43}44function findIdxInOld(node, oldCh, start, end) {45  for (var i = start; i < end; i++) {46    var c = oldCh[i];47    if (isDef(c) && sameVnode(node, c)) return i;48  }49} // function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {...

utils.js

Source:utils.js

1import createElement from "./createElement";2function getTag(el) {3    return el.tagName.toLowerCase();4}5function sameVnode(a, b) {6    return a.tag === b.tag && a.key === b.key && sameInputType(a, b)7}8function sameInputType(a, b) {9    if(a.tag === 'input' && b.tag === 'input') {10        if(a.type !== b.type) {11            return false;12        }13    }14    return true15}16function isUndef (v) {17    return v === undefined || v === null18}19function isDef (v) {20    return v !== undefined && v !== null21}22function createKeyToOldIdx (children, beginIdx, endIdx) {23    let i, key24    const map = {}25    for (i = beginIdx; i <= endIdx; ++i) {26        key = children[i].key27        if (isDef(key)) map[key] = i28    }29    return map30}31function findIdxInOld (node, oldCh, start, end) {32    for (let i = start; i < end; i++) {33        const c = oldCh[i]34        // è¿åç¬¬ä¸ä¸ªå¯ä»¥å¤ç¨çæ§èç¹ï¼æ§èç¹çkeyä¹ä¸å®ä¼æ¯nullï¼35        if (isDef(c) && sameVnode(node, c)) return i36    }37}38function addVnodes(parentElm, refElm, vnodes, startIdx, endIdx) {39    for (let i = startIdx; i <= endIdx; i++) {40        // å¦ærefElmä¸ºnullï¼åä¼æ·»å å°æåä¸é¡¹ ç¸å½äºappendChild41        parentElm.insertBefore(createElement(vnodes[i]), refElm)42    }43}44function removeVnodes(vnodes, startIdx, endIdx) {45    let parentElm = null;46    for (; startIdx <= endIdx; ++startIdx) {47        let ch = vnodes[startIdx];48        !parentElm && (parentElm = ch.elm.parentNode)49        parentElm && parentElm.removeChild(ch.elm)50    }51}52export {53    getTag,54    sameVnode,55    isUndef,56    isDef,57    createKeyToOldIdx,58    findIdxInOld,59    addVnodes,60    removeVnodes...

createKeyToOldIdx.js

Source:createKeyToOldIdx.js

1/* å»ºç« key: index çæ å° */2function createKeyToOldIdx (children, beginIdx, endIdx) {3  let i, key4  const map = {}5  for (i = beginIdx; i <= endIdx; ++i) {6    key = children[i].key7    if (isDef(key)) map[key] = i8  }9  // map åç»å¯ç¨äºå¿«éæ¥æ¾ç¸å key çèç¹è¿è¡æ¯è¾10  return map...

05.js

Source:05.js

1function createKeyToOldIdx(children, beginIdx, endIdx) {2  let i, key;3  const map = {};4  for (i = beginIdx; i <= endIdx; ++i) {5    key = children[i].key;6    if (isDef(key)) map[key] = i;7  }8  return map;...

Using AI Code Generation

1const { createKeyToOldIdx } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const keyToOldIdx = createKeyToOldIdx();3console.log(keyToOldIdx);4const { createOldIdxToKey } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');5const oldIdxToKey = createOldIdxToKey();6console.log(oldIdxToKey);7const { createKeyToNewIdx } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');8const keyToNewIdx = createKeyToNewIdx();9console.log(keyToNewIdx);10const { createNewIdxToKey } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');11const newIdxToKey = createNewIdxToKey();12console.log(newIdxToKey);13{

Using AI Code Generation

1const { createKeyToOldIdx } = require('playwright/lib/utils/utils');2const keyToOldIdx = createKeyToOldIdx(['a', 'b', 'c']);3console.log(keyToOldIdx);4export function createKeyToOldIdx(keys: string[]) {5  const keyToOldIdx = {};6  for (let i = 0; i < keys.length; i++) {7    keyToOldIdx[keys[i]] = i;8  }9  return keyToOldIdx;10}11export { createKeyToOldIdx } from './utils/utils';12const { createKeyToOldIdx } = require('playwright');13const keyToOldIdx = createKeyToOldIdx(['a', 'b', 'c']);14console.log(keyToOldIdx);15const { chromium } = require('playwright');16(async () => {17  const browser = await chromium.launch();18  const page = await browser.newPage();19  await page.screenshot({ path: 'example.png' });20  await browser.close();21})();

Using AI Code Generation

1const { createKeyToOldIdx } = require('@playwright/test/lib/server/supplements/recorder/recorderSupplement');2const keyToOldIdx = createKeyToOldIdx();3const { createKeyToOldIdx } = require('@playwright/test/lib/server/supplements/recorder/recorderSupplement');4const keyToOldIdx = createKeyToOldIdx();5const { keyToOldIdx } = require('./createKeyToOldIdx');6const { keyToOldIdx } = require('./createKeyToOldIdx');7const { keyToOldIdx } = require('./createKeyToOldIdx');8const key = 'ArrowDown';9const oldIdx = 1;10const newIdx = keyToOldIdx(key, oldIdx);11console.log(newIdx);12const { keyToOldIdx } = require('./createKeyToOldIdx');13const key = 'ArrowDown';14const oldIdx = 1;15const newIdx = keyToOldIdx(key, oldIdx);16console.log(newIdx);

Using AI Code Generation

1const internal = require('playwright/lib/server/frames');2const { Frame } = require('playwright/lib/server/frame');3const { ElementHandle } = require('playwright/lib/server/dom');4const { createKeyToOldIdx } = internal;5const frame = new Frame();6const element = new ElementHandle();7const oldChildren = [element];8const newChildren = [element];9const keyToOldIdx = createKeyToOldIdx(oldChildren);10const keyToNewIdx = createKeyToOldIdx(newChildren);11console.log(keyToOldIdx, keyToNewIdx);12Map {} Map {}13Map {} Map { undefined => 0 }

Using AI Code Generation

1const { createKeyToOldIdx } = require('playwright/lib/server/supplements/recorder/recorderSupplement')2const oldIdx = createKeyToOldIdx({3})4const { createKeyToOldIdx } = require('playwright/lib/server/supplements/recorder/recorderSupplement')5const oldIdx = createKeyToOldIdx({6})7const { createKeyToOldIdx } = require('playwright/lib/server/supplements/recorder/recorderSupplement')8const oldIdx = createKeyToOldIdx({9})10const { createKeyToOldIdx } = require('playwright/lib/server/supplements/recorder/recorderSupplement')11const oldIdx = createKeyToOldIdx({12})13const { createKeyToOldIdx } = require('playwright/lib/server/supplements/recorder/recorderSupplement')14const oldIdx = createKeyToOldIdx({

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.