How to use genOnce method in Playwright Internal

Best JavaScript code snippet using playwright-internal

index.js

Source: index.js Github

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...13 render: `with(this){return ${code}}`,14 staticRenderFns: state.staticRenderFns15 }16}17function genOnce() {18 console.log('genOnce')19}20export function genIf(el, state, altGen, altEmpty) {21 el.ifProcessed = true22 return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)23}24function genIfConditions(conditions, state, altGen, altEmpty) {25 if (!conditions.length) {26 return altEmpty || '_e()'27 }28 const condition = conditions.shift()29 if (condition.exp) {30 return `(${condition.exp})?${genTernaryExp(condition.block)}31 :${genIfConditions(conditions, state, altGen)}`32 } else {33 return `${genTernaryExp(condition.block)}`34 }35 function genTernaryExp(el) {36 return altGen ? altGen(el, state)37 : el.once ? genOnce(el, state)38 : genElement(el, state)39 }40}41export function genFor(el, state, altGen, altHelper) {42 const exp = el.for43 const alias = el.alias44 const iterator1 = el.iterator1 ? `,${el.iterator1}` : ''45 const iterator2 = el.iterator2 ? `,${el.iterator2}` : ''46 el.forProcessed = true47 return `${altHelper || '_l'}((${exp}),` +48 `function(${alias}${iterator1}${iterator2}){` +49 `return ${(altGen || genElement)(el, state)}` +50 '})'51}...

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game.js

Source: game.js Github

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1var squareHeight = 100;2var squareWidth = 100;3var squareGap = 10;4var column = 4;5var row = 3;6var colorCount = column * row;7var genOnce = false;8var temp;9var totalTiles = column * row;10var squarePlacement = [];11var highlight = createjs.Graphics.getRGB(255, 0, 0);12var tileChecked;13function init() {14 var stage = new createjs.Stage("myCanvas");15 randomDoubleColor();16 for (i = 0; i < squarePlacement.length; i++) {17 var color = randomColor();18 var square = drawSquare(color);19 square["color"] = square.graphics._fill.style;20 square.graphics._fill.style = "rgb(140, 136, 136)";21 square.x = (squareWidth + squareGap) * (squarePlacement[i] % column);22 square.y =23 (squareHeight + squareGap) * Math.floor(squarePlacement[i] /​ column);24 stage.addChild(square);25 square.addEventListener("click", handleOnPress);26 stage.update();27 }28 function handleOnPress(e) {29 var tile = e.target;30 tile.graphics.beginFill(tile.color).rect(5, 5, squareHeight, squareWidth);31 tile.mouseEnabled = false;32 if (!!tileChecked === false) {33 tileChecked = tile;34 } else {35 stage.mouseChildren = false;36 tile.graphics.beginFill(tile.color).rect(5, 5, squareHeight, squareWidth);37 setTimeout(function () {38 if (tileChecked.color === tile.color && tileChecked !== tile) {39 tileChecked.visible = false;40 tile.visible = false;41 console.log("match");42 console.log((colorCount = colorCount - 2));43 if (colorCount < 1) {44 console.log("finished");45 document.getElementById(46 "countdown"47 ).innerHTML = document.location.reload();48 document.getElementById(49 "countdown"50 ).innerHTML = document.getElementById("startBtn").style.display =51 "<p id=winMsg> YOU WIN!<p>";52 document.getElementById("startBtn").style.display = "block";53 }54 } else {55 console.log("not match");56 tile.graphics57 .beginFill("rgb(140, 136, 136)")58 .rect(5, 5, squareHeight, squareWidth);59 tileChecked.graphics60 .beginFill("rgb(140, 136, 136)")61 .rect(5, 5, squareHeight, squareWidth);62 }63 tile.mouseEnabled = true;64 tileChecked.mouseEnabled = true;65 stage.mouseChildren = true;66 tileChecked = null;67 stage.update();68 }, 1000);69 }70 console.log("we are at the end");71 stage.update();72 }73}74function drawSquare(color) {75 var graphics = new createjs.Graphics()76 .setStrokeStyle(5)77 .beginStroke("rgba(20,20,20,1)");78 if (!genOnce) {79 graphics.beginFill(color).rect(5, 5, squareHeight, squareWidth);80 temp = color;81 genOnce = true;82 } else {83 graphics.beginFill(temp).rect(5, 5, squareHeight, squareWidth);84 genOnce = false;85 }86 var shape = new createjs.Shape(graphics);87 return shape;88}89function randomColor() {90 var num1 = Math.floor(Math.random() * 255);91 var num2 = Math.floor(Math.random() * 255);92 var num3 = Math.floor(Math.random() * 255);93 return "rgba(" + num1 + "," + num2 + "," + num3 + ",1)";94}95function randomDoubleColor() {96 for (i = 0; i < totalTiles; i++) {97 squarePlacement.push(i);98 }99 squarePlacement = shuffleArray(squarePlacement);100 return squarePlacement;101}102function shuffleArray(array) {103 for (var i = array.length - 1; i > 0; i--) {104 var j = Math.floor(Math.random() * (i + 1));105 [array[i], array[j]] = [array[j], array[i]];106 }107 return array;108}109function hideStart() {110 document.getElementById("startBtn").style.display = "none";111 var timeleft = 40;112 var downloadTimer = setInterval(function () {113 if (timeleft < 0) {114 clearInterval(downloadTimer);115 document.getElementById(116 "countdown"117 ).innerHTML = document.location.reload();118 document.getElementById("countdown").innerHTML = document.getElementById(119 "startBtn"120 ).style.display = "<p id=lossMsg> Time's Up!<p>";121 document.getElementById("startBtn").style.display = "block";122 } else {123 document.getElementById("countdown").innerHTML =124 timeleft + " seconds remaining...";125 document.getElementById("progressBar").value = 40 - timeleft;126 }127 timeleft -= 1;128 }, 1000);...

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main.js

Source: main.js Github

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1const squareHeight = 200;2const squareWidth = 200;3const squareGap = 10;4const column = 4;5const row = 3;6const highlight = createjs.Graphics.getRGB(255, 0, 0);7const stage = new createjs.Stage('myCanvas');8let squarePlacement = [];9let genOnce = false;10let tileChecked;11let temp;12randomDoubleColor();13for (i = 0; i < squarePlacement.length; i++) {14 const color = randomColor();15 const square = drawSquare(color);16 square['color'] = square.graphics._fill.style;17 square.graphics._fill.style = 'rgb(140, 136, 136)';18 square.x =19 (squareWidth + squareGap) * (squarePlacement[i] % column);20 square.y =21 (squareHeight + squareGap) *22 Math.floor(squarePlacement[i] /​ column);23 stage.addChild(square);24 square.addEventListener('click', handleOnPress);25 stage.update();26}27function handleOnPress(e) {28 const tile = e.target;29 tile.graphics30 .beginFill(tile.color)31 .rect(5, 5, squareHeight, squareWidth);32 tile.mouseEnabled = false;33 if (!!tileChecked === false) {34 tileChecked = tile;35 } else {36 stage.mouseChildren = false;37 tile.graphics38 .beginFill(tile.color)39 .rect(5, 5, squareHeight, squareWidth);40 setTimeout(function () {41 if (42 tileChecked.color === tile.color &&43 tileChecked !== tile44 ) {45 tileChecked.visible = false;46 tile.visible = false;47 } else {48 tile.graphics49 .beginFill('rgb(140, 136, 136)')50 .rect(5, 5, squareHeight, squareWidth);51 tileChecked.graphics52 .beginFill('rgb(140, 136, 136)')53 .rect(5, 5, squareHeight, squareWidth);54 }55 tile.mouseEnabled = true;56 tileChecked.mouseEnabled = true;57 stage.mouseChildren = true;58 tileChecked = null;59 stage.update();60 }, 1000);61 }62 stage.update();63}64function randomDoubleColor() {65 for (let i = 0; i < column * row; i++) {66 squarePlacement.push(i);67 }68 squarePlacement = shuffleArray(squarePlacement);69 return squarePlacement;70}71function shuffleArray(array) {72 for (let i = array.length - 1; i > 0; i--) {73 const j = Math.floor(Math.random() * (i + 1));74 [array[i], array[j]] = [array[j], array[i]];75 }76 return array;77}78function drawSquare() {79 const color = randomColor();80 const graphics = new createjs.Graphics()81 .setStrokeStyle(5)82 .beginStroke('rgba(20,20,20,1)');83 if (!genOnce) {84 graphics85 .beginFill(color)86 .rect(5, 5, squareHeight, squareWidth);87 temp = color;88 genOnce = true;89 } else {90 graphics91 .beginFill(temp)92 .rect(5, 5, squareHeight, squareWidth);93 genOnce = false;94 }95 const shape = new createjs.Shape(graphics);96 return shape;97}98function randomColor() {99 const num1 = Math.floor(Math.random() * 255);100 const num2 = Math.floor(Math.random() * 255);101 const num3 = Math.floor(Math.random() * 255);102 return 'rgba(' + num1 + ',' + num2 + ',' + num3 + ',1)';...

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genIfConditions.js

Source: genIfConditions.js Github

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...37 }38 /​/​ v-if with v-once should generate code like (a)?_m(0):_m(1)39 /​/​ 生成代码:40 /​/​ altGen -> altGen(el, state)41 /​/​ once -> genOnce(el, state)42 /​/​ -> genEleemnt(el, state)43 function genTernaryExp (el) {44 return altGen45 ? altGen(el, state)46 : el.once47 ? genOnce(el, state)48 : genElement(el, state)49 }50}...

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DownloadLink.jsx

Source: DownloadLink.jsx Github

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1import React from "react";2import { useTranslation } from "react-i18next";3const generateDownloadURI = (data) => {4 return (5 "data:text/​json;charset=utf-8," + encodeURIComponent(JSON.stringify(data))6 );7};8export const DownloadLink = ({ getData = () => {} }) => {9 const { t } = useTranslation();10 const [downloadURI, setDownloadURI] = React.useState("");11 const [date, setDate] = React.useState(Date.now());12 const [genOnce, setGenOnce] = React.useState(false);13 const updateSaveLink = React.useCallback(async () => {14 const data = await getData();15 if (data.items.length) {16 setDownloadURI(generateDownloadURI(data));17 setDate(Date.now());18 setGenOnce(true);19 }20 }, [getData]);21 React.useEffect(() => {22 let mounted = true;23 const cancel = setInterval(() => {24 if (!mounted) return;25 updateSaveLink();26 }, 2000);27 updateSaveLink();28 return () => {29 mounted = false;30 setGenOnce(false);31 clearInterval(cancel);32 };33 }, [updateSaveLink]);34 return (35 <>36 {genOnce && (37 <a38 className="button success icon"39 href={downloadURI}40 download={`airboardgame_${date}.json`}41 >42 {t("Export")}43 <img44 src={"https:/​/​icongr.am/​entypo/​download.svg?size=20&color=f9fbfa"}45 alt="icon"46 /​>47 </​a>48 )}49 {!genOnce && (50 <button className="button" disabled>51 {t("Generating export")}...52 </​button>53 )}54 </​>55 );56};...

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8391.js

Source: 8391.js Github

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1{2 return altGen3 ? altGen(el, state)4 : el.once ? genOnce(el, state) : genElement(el, state);...

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8962.js

Source: 8962.js Github

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1{2 return altGen3 ? altGen(el, state)4 : el.once ? genOnce(el, state) : genElement(el, state);...

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11007.js

Source: 11007.js Github

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1{2 return altGen3 ? altGen(el, state)4 : el.once ? genOnce(el, state) : genElement(el, state);...

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement.js');7 const result = await genOnce(page);8 console.log(result);9 await browser.close();10})();11{12 {13 }14}15const { chromium } = require('playwright');16(async () => {17 const browser = await chromium.launch({ headless: false });18 const context = await browser.newContext();19 const page = await context.newPage();20 const { gen } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement.js');21 await page.click('input[name="q"]');22 await page.fill('input[name="q"]', 'Playwright');23 const result = await gen(page);24 console.log(result);25 await browser.close();26})();27{28 {29 },30 {31 {32 }33 },34 {

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Using AI Code Generation

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1const {chromium} = require('playwright');2const {genOnce} = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement.js');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 await genOnce(page);7 await page.click('input[name="q"]');8 await page.fill('input[name="q"]', 'Hello World!');9 await page.click('input[name="btnK"]');10 await page.screenshot({ path: `example.png` });11 await browser.close();12})();13{14 "scripts": {15 },16 "dependencies": {17 }18}

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Using AI Code Generation

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1const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');2const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');3const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');4const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');5const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');6const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');7const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');8const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');9const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');10const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');11const { genOnce } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement

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Using AI Code Generation

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1const { genOnce } = require('playwright/​internal/​inspectorInstrumentation');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const [request] = await Promise.all([7 page.waitForRequest('**/​empty.html'),8 ]);9 const { response } = await genOnce(request, 'response');10 console.log(response.status());11 await browser.close();12})();13const { genOnce } = require('playwright/​internal/​inspectorInstrumentation');14const { chromium } = require('playwright');15(async () => {16 const browser = await chromium.launch();17 const page = await browser.newPage();18 const [response] = await Promise.all([19 page.waitForEvent('response'),20 page.click('a'),21 ]);22 console.log(response.status());23 await browser.close();24})();25const { genOnce } = require('playwright/​internal/​inspectorInstrumentation');26const { chromium } =

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Using AI Code Generation

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1const { genOnce } = require('playwright/​lib/​server/​gen');2const { generateTest } = require('playwright/​lib/​server/​generateTest');3const path = require('path');4(async () => {5 const outputDir = path.join(__dirname, 'gen');6 const testFile = path.join(outputDir, 'test.js');7 const testInfo = await genOnce(testFile, outputDir, 'chromium');8 await generateTest(testInfo, outputDir);9})();10const { test } = require('@playwright/​test');11test('test', async ({ page }) => {12 await page.click('text=Get Started');13 await page.click('text=Docs');14 await page.click('text=API');15 await page.click('text=Selectors');16 await page.click('text=Playwright');17});18import { test, expect } from '@playwright/​test';19test('test', async ({ page }) => {20 await page.click('text=Get Started');21 await page.click('text=Docs');22 await page.click('text=API');23 await page.click('text=Selectors');24 await page.click('text=Playwright');25});26const { test, expect } = require('@playwright/​test');27test('test', async ({ page }) => {28 await page.click('text=Get Started');29 await page.click('text=Docs');30 await page.click('text=API');31 await page.click('text=Selectors');32 await page.click('text=Playwright');33});34const { test, expect } = require('@playwright/​test');35test('test', async ({ page }) => {36 await page.click('text=Get Started');37 await page.click('text=Docs');38 await page.click('text=API');39 await page.click('text=Selectors');40 await page.click('text=

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Using AI Code Generation

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1import { PlaywrightInternal } from 'playwright-core/​lib/​server/​playwright.js';2const playwright = new PlaywrightInternal();3const context = await playwright._defaultBrowserContext();4const page = await context.newPage();5const generator = page._delegate.generator();6const genOnce = generator.genOnce.bind(generator);7console.log(result);

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StackOverFlow community discussions

Questions
Discussion

Jest + Playwright - Test callbacks of event-based DOM library

firefox browser does not start in playwright

Is it possible to get the selector from a locator object in playwright?

How to run a list of test suites in a single file concurrently in jest?

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
})
https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

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