Best JavaScript code snippet using playwright-internal
ReactChildren.js
Source: ReactChildren.js
...71 第ä¸ä¸ªåæ°: åå§ä¸º ''72 第å个åæ°: child ç key å¼, åå§ä¸º ''73 第äºä¸ªåæ°: åè°å½æ° wrapCallback, åªæ¥æ¶ children çæ¯ä¸é¡¹ child74*/75function mapIntoArray(76 children: ?ReactNodeList,77 array: Array<React$Node>,78 escapedPrefix: string,79 nameSoFar: string,80 callback: (?React$Node) => ?ReactNodeList,81): number {82 const type = typeof children;83 // == å¦æ children æ¯ undefined æè
boolean, children å为 null84 if (type === 'undefined' || type === 'boolean') {85 // All of the above are perceived as null.86 children = null;87 }88 // == children ä¸æ¯æ°ç»åä¼ç´æ¥å¤èµ· callback89 let invokeCallback = false;90 if (children === null) {91 invokeCallback = true;92 } else {93 switch (type) {94 case 'string':95 case 'number':96 invokeCallback = true;97 break;98 case 'object':99 switch ((children: any).$$typeof) {100 case REACT_ELEMENT_TYPE:101 case REACT_PORTAL_TYPE:102 invokeCallback = true;103 }104 }105 }106 /*// == children ä¸æ¯æ°ç»åä¼ç´æ¥å¤èµ· callback107 ä¸ãåå¦ children 为 <div>111111</div> ï¼è°ç¨ React.Children.map(props.children, c => [c, c])108 1. props.children éæ°ç»ï¼è¿å
¥ invokeCallback109 2. let mappedChild = callback(child), è¿åæ°ç»ï¼æ¯æ ¹æ®åå§ç callback å³å®çï¼110 äºãåå¦ children 为 <div>111111</div> ï¼è°ç¨ React.Children.map(props.children, c => c)111 1. props.children éæ°ç»ï¼è¿å
¥ invokeCallback112 2. let mappedChild = callback(child), è¿åéï¼æ¯æ ¹æ®åå§ç callback å³å®çï¼113 */114 if (invokeCallback) {115 const child = children;116 // == ç´æ¥è°ç¨ callback, ä¼ å
¥ child117 let mappedChild = callback(child);118 // If it's the only child, treat the name as if it was wrapped in an array119 // so that it's consistent if the number of children grows:120 // == è·å React Element ç key å¼: element.key121 const childKey =122 nameSoFar === '' ? SEPARATOR + getElementKey(child, 0) : nameSoFar;123 124 if (Array.isArray(mappedChild)) {125 // == mappedChild 为 Array126 let escapedChildKey = '';127 if (childKey != null) {128 escapedChildKey = escapeUserProvidedKey(childKey) + '/';129 }130 // == éå½è°ç¨: åæ£æç»ç»æçåè°æ¯å±å¹³æ°ç» c => c131 // == å¨ä¸æ¬¡è¿å
¥ mapIntoArray å½æ°çæ¶å ä¼è¿å
¥ invokeCallback 为 false çé»è¾132 mapIntoArray(mappedChild, array, escapedChildKey, '', c => c);133 } else if (mappedChild != null) {134 // == mappedChild ä¸ä¸º Arrayï¼ä½ä¸ä¸º null135 if (isValidElement(mappedChild)) {136 // == mappedChild æ¯åçç React Element137 mappedChild = cloneAndReplaceKey(138 mappedChild,139 // Keep both the (mapped) and old keys if they differ, just as140 // traverseAllChildren used to do for objects as children141 escapedPrefix +142 // $FlowFixMe Flow incorrectly thinks React.Portal doesn't have a key143 (mappedChild.key && (!child || child.key !== mappedChild.key)144 ? // $FlowFixMe Flow incorrectly thinks existing element's key can be a number145 escapeUserProvidedKey('' + mappedChild.key) + '/'146 : '') +147 childKey,148 );149 }150 // == array å° mappedChild åå
¥151 array.push(mappedChild);152 }153 // == mappedChild 为 null154 return 1;155 }156 let child;157 let nextName;158 let subtreeCount = 0; // Count of children found in the current subtree.159 const nextNamePrefix =160 nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;161 /*// == children æ¯æ°ç»162 ä¸ãåå¦ children 为 [<div>111111</div>, <div>22222</div>]ï¼è°ç¨ React.Children.map(props.children, c => c)163 1. props.children æ¯æ°ç»ï¼è¿å
¥ !invokeCallback164 2. for å¾ªç¯ children æ¯ä¸é¡¹é½ mapIntoArray165 3. åå child å¨ä¸ä¸æ¬¡è¿å
¥ mapIntoArray åè¿å
¥ invokeCallback é»è¾166 äºãåå¦ children ä¸æ¯æ°ç»ï¼æ¯éåå¨å½æ°ãä¸æ ·çéåæ¯ä¸é¡¹167 */168 if (Array.isArray(children)) {169 // == chilren æ¯ä¸é¡¹é½è°ç¨ mapIntoArray170 for (let i = 0; i < children.length; i++) {171 child = children[i];172 nextName = nextNamePrefix + getElementKey(child, i);173 subtreeCount += mapIntoArray(174 child,175 array,176 escapedPrefix,177 nextName,178 callback,179 );180 }181 } else {182 /* iteratorFn çå¼ä¸º: children[Symbol.iterator] æ children[@@iterator]ï¼ æ¯ä¸ä¸ªéåå¨å½æ°183 æ对象ç Symbol.iterator å±æ§ä¸ºéåå¨å½æ°ï¼å 该对象 å为éåå¨å¯¹è±¡ï¼å
·æéåå¨æ¥å£ã184 ä¾ï¼function* gen() {} let g = gen(); // g 为éåå¨å¯¹è±¡185 g[Symbol.iterator] === gen186 g[Symbol.iterator]() === g187 */188 const iteratorFn = getIteratorFn(children);189 if (typeof iteratorFn === 'function') {190 const iterableChildren: Iterable<React$Node> & {191 entries: any,192 } = (children: any);193 if (__DEV__) {194 // Warn about using Maps as children195 if (iteratorFn === iterableChildren.entries) {196 if (!didWarnAboutMaps) {197 console.warn(198 'Using Maps as children is not supported. ' +199 'Use an array of keyed ReactElements instead.',200 );201 }202 didWarnAboutMaps = true;203 }204 }205 // == éåå¨å¯¹è±¡ï¼éåéåå¨å¯¹è±¡: æ¯ä¸é¡¹é½è°ç¨ mapIntoArray206 const iterator = iteratorFn.call(iterableChildren);207 let step;208 let ii = 0;209 while (!(step = iterator.next()).done) {210 child = step.value;211 nextName = nextNamePrefix + getElementKey(child, ii++);212 subtreeCount += mapIntoArray(213 child,214 array,215 escapedPrefix,216 nextName,217 callback,218 );219 }220 } else if (type === 'object') {221 // == typeof children æ¯ä¸ä¸ª object: æ¥é222 const childrenString = '' + (children: any);223 invariant(224 false,225 'Objects are not valid as a React child (found: %s). ' +226 'If you meant to render a collection of children, use an array ' +227 'instead.',228 childrenString === '[object Object]'229 ? 'object with keys {' + Object.keys((children: any)).join(', ') + '}'230 : childrenString,231 );232 }233 }234 // == è¿ååæ çæ°é235 return subtreeCount;236}237type MapFunc = (child: ?React$Node) => ?ReactNodeList;238/**239 * Maps children that are typically specified as `props.children`.240 *241 * See https://reactjs.org/docs/react-api.html#reactchildrenmap242 *243 * The provided mapFunction(child, index) will be called for each244 * leaf child.245 *246 * @param {?*} children Children tree container.247 * @param {function(*, int)} func The map function.248 * @param {*} context Context for mapFunction.249 * @return {object} Object containing the ordered map of results.250 */251// == 第ä¸ä¸ªåæ°: props.children252// == 第äºä¸ªåæ°: åè°å½æ°, æ¥æ¶ children çæ¯ä¸é¡¹ child253// == 第ä¸ä¸ªåæ°: contextï¼ä¸ä¼ å为 null å254// == è¿åæ°ç children255function mapChildren(256 children: ?ReactNodeList,257 func: MapFunc,258 context: mixed,259): ?Array<React$Node> {260 // == children 为 null æ undefined ç´æ¥è¿å261 if (children == null) {262 return children;263 }264 const result = [];265 let count = 0;266 // == children çæ¯ä¸é¡¹åºç¨ func å½æ°ï¼ä¼ å
¥ child å index267 mapIntoArray(children, result, '', '', function(child) {268 return func.call(context, child, count++);269 });270 // == è¿å累计çç»æ result271 return result;272}273/**274 * Count the number of children that are typically specified as275 * `props.children`.276 *277 * See https://reactjs.org/docs/react-api.html#reactchildrencount278 *279 * @param {?*} children Children tree container.280 * @return {number} The number of children.281 */...
index.js
Source: index.js
...40 };41 async componentDidMount() {42 this.setState({43 genres: bookGenres,44 maxID: this.mapIntoArray(booksBackupAPI).length + 145 });46 const result = await getBooksCatalog();47 try {48 this.setState({49 isLoaded: true,50 books: this.mapIntoArray(result.catalog),51 originalBooks: this.mapIntoArray(result.catalog)52 });53 } catch (error) {54 this.setState({55 isLoaded: true,56 books: this.mapIntoArray(booksBackupAPI),57 originalBooks: this.mapIntoArray(booksBackupAPI)58 });59 }60 }61 mapIntoArray(result) {62 const array = [];63 Object.keys(result).filter(index => array.push(result[index]));64 return array;65 }66 handleFilterChange(genre) {67 const { filtersChecked, originalBooks } = this.state;68 if (!filtersChecked.includes(genre)) {69 filtersChecked.push(genre);70 } else {71 const index = filtersChecked.indexOf(genre);72 filtersChecked.splice(index, 1);73 }74 if (filtersChecked.length !== 0) {75 const found = originalBooks.filter(book =>...
output.js
Source: output.js
1function mapIntoArray(children, array, escapedPrefix, nameSoFar, callback) {2 var type = typeof children;3 ("undefined" === type || "boolean" === type) && (children = null);4 var invokeCallback = !1;5 if (null === children) invokeCallback = !0;6 else switch(type){7 case "string":8 case "number":9 invokeCallback = !0;10 break;11 case "object":12 switch(children.$$typeof){13 case REACT_ELEMENT_TYPE:14 case REACT_PORTAL_TYPE:15 invokeCallback = !0;16 }17 }18 if (invokeCallback) {19 var _child = children, mappedChild = callback(_child), childKey = "" === nameSoFar ? "." + getElementKey(_child, 0) : nameSoFar;20 if (Array.isArray(mappedChild)) {21 var escapedChildKey = "";22 null != childKey && (escapedChildKey = escapeUserProvidedKey(childKey) + "/"), mapIntoArray(mappedChild, array, escapedChildKey, "", function(c) {23 return c;24 });25 } else null != mappedChild && (isValidElement(mappedChild) && (mappedChild = cloneAndReplaceKey(mappedChild, escapedPrefix + (mappedChild.key && (!_child || _child.key !== mappedChild.key) ? escapeUserProvidedKey("" + mappedChild.key) + "/" : "") + childKey)), array.push(mappedChild));26 return 1;27 }28 var subtreeCount = 0, nextNamePrefix = "" === nameSoFar ? "." : nameSoFar + SUBSEPARATOR;29 if (Array.isArray(children)) for(var i = 0; i < children.length; i++)nextName = nextNamePrefix + getElementKey(child = children[i], i), subtreeCount += mapIntoArray(child, array, escapedPrefix, nextName, callback);30 else {31 var iteratorFn = getIteratorFn(children);32 if ("function" == typeof iteratorFn) {33 var child, nextName, step, iterableChildren = children;34 iteratorFn === iterableChildren.entries && (didWarnAboutMaps || warn("Using Maps as children is not supported. Use an array of keyed ReactElements instead."), didWarnAboutMaps = !0);35 for(var iterator = iteratorFn.call(iterableChildren), ii = 0; !(step = iterator.next()).done;)nextName = nextNamePrefix + getElementKey(child = step.value, ii++), subtreeCount += mapIntoArray(child, array, escapedPrefix, nextName, callback);36 } else if ("object" === type) {37 var childrenString = "" + children;38 throw Error("Objects are not valid as a React child (found: " + ("[object Object]" === childrenString ? "object with keys {" + Object.keys(children).join(", ") + "}" : childrenString) + "). If you meant to render a collection of children, use an array instead.");39 }40 }41 return subtreeCount;...
Using AI Code Generation
1const { mapIntoArray } = require('playwright/lib/utils/utils');2const { Page } = require('playwright/lib/server/page');3const { ElementHandle } = require('playwright/lib/server/dom');4const { Frame } = require('playwright/lib/server/frame');5async function main() {6 const page = new Page(null, null, null);7 await page.setContent(`<div>Hello World</div>`);8 const frame = page.mainFrame();9 const element = await frame.$('div');10 const array = await mapIntoArray(element, element => element.textContent);11 console.log(array);12}13main();14const { mapIntoArray } = require('playwright/lib/utils/utils');15const { Page } = require('playwright/lib/server/page');16const { ElementHandle } = require('playwright/lib/server/dom');17const { Frame } = require('playwright/lib/server/frame');18async function main() {19 const page = new Page(null, null, null);20 await page.setContent(`<div>Hello World</div>`);21 const frame = page.mainFrame();22 const element = await frame.$('div');23 const array = await mapIntoArray(element, element => element.textContent);24 console.log(array);25}26main();27const { mapIntoArray } = require('playwright/lib/utils/utils');28const { Page } = require('playwright/lib/server/page');29const { ElementHandle } = require('playwright/lib/server/dom');30const { Frame } = require('playwright/lib/server/frame');31async function main() {32 const page = new Page(null, null, null);33 await page.setContent(`<div>Hello World</div>`);34 const frame = page.mainFrame();35 const element = await frame.$('div');36 const array = await mapIntoArray(element, element => element.textContent);37 console.log(array);38}39main();40const { mapIntoArray } = require('playwright/lib/utils/utils
Using AI Code Generation
1const { mapIntoArray } = require('playwright/lib/utils/utils');2const { mapIntoArray } = require('playwright/lib/utils/utils');3const obj = {4}5const arr = mapIntoArray(obj, (value, key) => {6 return {7 }8});9console.log(arr);10const { mapIntoArray } = require('playwright/lib/utils/utils');11const { mapIntoArray } = require('playwright/lib/utils/utils');12const obj = {13}14const arr = mapIntoArray(obj, (value, key) => {15 return {16 }17});18console.log(arr);19const { mapIntoArray } = require('playwright/lib/utils/utils');20const { mapIntoArray } = require('playwright/lib/utils/utils');21const obj = {22}23const arr = mapIntoArray(obj, (value, key) => {24 return {25 }26});27console.log(arr);28const { mapIntoArray
Using AI Code Generation
1const { mapIntoArray } = require('@playwright/test/lib/utils/utils');2const assert = require('assert');3const array = [1, 2, 3, 4, 5];4const newArray = mapIntoArray(array, (item) => item * 2);5assert.deepStrictEqual(newArray, [2, 4, 6, 8, 10]);6assert.deepStrictEqual(array, [1, 2, 3, 4, 5]);7console.log('test passed');8import { mapIntoArray } from '@playwright/test/lib/utils/utils';9import assert from 'assert';10const array = [1, 2, 3, 4, 5];11const newArray = mapIntoArray(array, (item) => item * 2);12assert.deepStrictEqual(newArray, [2, 4, 6, 8, 10]);13assert.deepStrictEqual(array, [1, 2, 3, 4, 5]);14console.log('test passed');15const assert = require('assert');16const { test, expect } = require('@playwright/test');17test('basic test', async ({ page }) => {18 const title = page.locator('text=Playwright');19 await expect(title).toBeVisible();20 const text = await page.textContent('css=div.home-description');21 assert(/Node\.js library/.test(text));22});
Jest + Playwright - Test callbacks of event-based DOM library
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Running Playwright in Azure Function
firefox browser does not start in playwright
This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
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