Best JavaScript code snippet using playwright-internal
ReactPartialRendererHooks.js
Source: ReactPartialRendererHooks.js
...215 workInProgressHook.memoizedState !== null216 ) {217 const prevState = workInProgressHook.memoizedState;218 const prevInputs = prevState[1];219 if (areHookInputsEqual(nextInputs, prevInputs)) {220 return prevState[0];221 }222 }223 const nextValue = nextCreate();224 workInProgressHook.memoizedState = [nextValue, nextInputs];225 return nextValue;226}227function useRef<T>(initialValue: T): {current: T} {228 currentlyRenderingComponent = resolveCurrentlyRenderingComponent();229 workInProgressHook = createWorkInProgressHook();230 const previousRef = workInProgressHook.memoizedState;231 if (previousRef === null) {232 const ref = {current: initialValue};233 if (__DEV__) {...
dispatcher.js
Source: dispatcher.js
...52 let nextInputs = Array.isArray(deps) ? deps : [create];53 let prevState = updateQueue[key];54 if (prevState) {55 let prevInputs = prevState[1];56 if (areHookInputsEqual(nextInputs, prevInputs)) {57 return prevState[0];58 }59 }60 let value = isMemo ? create() : create;61 updateQueue[key] = [value, nextInputs];62 return value;63 },64 useRef(initValue) {//ok65 let fiber = getCurrentFiber();66 let key = getCurrentKey();67 let updateQueue = fiber.updateQueue;68 if (key in updateQueue) {69 return updateQueue[key];70 }71 return updateQueue[key] = { current: initValue };72 },73 useEffect(create, deps, EffectTag, createList, destoryList) {//ok74 let fiber = getCurrentFiber();75 let cb = dispatcher.useCallbackOrMemo(create, deps);76 if (fiber.effectTag % EffectTag) {77 fiber.effectTag *= EffectTag;78 }79 let updateQueue = fiber.updateQueue;80 let list = updateQueue[createList] || (updateQueue[createList] = []);81 updateQueue[destoryList] || (updateQueue[destoryList] = []);82 list.push(cb);83 },84 useImperativeHandle(ref, create, deps) {85 const nextInputs = Array.isArray(deps) ? deps.concat([ref])86 : [ref, create];87 dispatcher.useEffect(() => {88 if (typeof ref === 'function') {89 const refCallback = ref;90 const inst = create();91 refCallback(inst);92 return () => refCallback(null);93 } else if (ref !== null && ref !== undefined) {94 const refObject = ref;95 const inst = create();96 refObject.current = inst;97 return () => {98 refObject.current = null;99 };100 }101 }, nextInputs);102 }103};104function getCurrentFiber() {105 return get(Renderer.currentOwner);106}107function areHookInputsEqual(arr1, arr2) {108 for (var i = 0; i < arr1.length; i++) {109 if (Object.is(arr1[i], arr2[i])) {110 continue;111 }112 return false;113 }114 return true;...
index.js
Source: index.js
...44 if (prevState !== null) {45 // Assume these are defined. If they're not, areHookInputsEqual will warn.46 if (nextDeps !== null) {47 var prevDeps = prevState[1];48 if (areHookInputsEqual(nextDeps, prevDeps)) {49 return prevState[0];50 }51 }52 }53 var nextValue = nextCreate();54 hook.memoizedState = [nextValue, nextDeps];55 return nextValue;56 }57 */58function App() {59 const [name, setName] = React.useState('å称');60 const [content, setContent] = React.useState('å
容');61 return (62 <div className="section" data-title="11 hooks: useMemo">...
hooks.js
Source: hooks.js
...78 if (currentHook) {79 const prevEffect = currentHook.memoizedState;80 if (deps) {81 const prevDeps = prevEffect.deps;82 if (areHookInputsEqual(deps, prevDeps)) {83 return;84 }85 }86 }87 hook.memoizedState = effect;88 if (hookFlag & HookPassive) {89 currentlyRenderingFiber.updateQueueOfEffect.push(effect);90 } else if (hookFlag & HookLayout) {91 currentlyRenderingFiber.updateQueueOfLayout.push(effect);92 }...
useCallback&useMemo.js
Source: useCallback&useMemo.js
...25 if (prevState !== null) {26 if (nextDeps !== null) {27 const prevDeps = prevState[1];28 // 对äºä¸¤ä¸ªä¾èµé¡¹è¿è¡æ¯è¾ï¼è¿éçå®è´¨ä¸æ¯ä¸ä¸ªæµ
æ¯è¾ãObject.is()29 if (areHookInputsEqual(nextDeps, prevDeps)) {30 return prevState[0];31 }32 }33 }34 // åupdateMemo()çå¯ä¸åºå«å°±æ¯æ¯å¦ä¼å¯¹ä¼ å
¥çå½æ°è¿è¡è°ç¨ã35 hook.memoizedState = [callback, nextDeps];36 return callback;37}38function updateMemo(nextCreate, deps) {39 const hook = updateWorkInProgressHook();40 const nextDeps = deps === undefined ? null : deps;41 const prevState = hook.memoizedState;42 if (prevState !== null) {43 if (nextDeps !== null) {44 const prevDeps = prevState[1];45 if (areHookInputsEqual(nextDeps, prevDeps)) {46 return prevState[0];47 }48 }49 }50 const nextValue = nextCreate();51 hook.memoizedState = [nextValue, nextDeps];52 return nextValue;...
UseEffectDemo.js
Source: UseEffectDemo.js
...38 depIndex++;39 return;40 }41 let prevDeps = depsArray[_depIndex];42 let hasChanged = !!!areHookInputsEqual(prevDeps, newDeps);43 if (hasChanged) {44 //æåå45 callback();46 depsArray[_depIndex] = newDeps;47 }48 depIndex++;49 };50 useEffect(() => {51 console.log("countåçäºåå");52 }, [count]);53 useEffect(() => {54 console.log("nameåçäºåå");55 },[]);56 /******* useEffect end ***********/...
useStableMemo.js
Source: useStableMemo.js
1import { useRef } from 'react';2import areHookInputsEqual from './areHookInputsEqual';3import { shallowEqual, deepEqual } from '@twipped/utils';4/**5 * Identical to `useMemo` _except_ that it provides a semantic guarantee that6 * values will not be invalidated unless the dependencies change. This is unlike7 * the built in `useMemo` which may discard memoized values for performance reasons.8 *9 * @param factory A function that returns a value to be memoized10 * @param deps A dependency array11 */12export default function useStableMemo (factory, deps, comparison = areHookInputsEqual) {13 if (comparison === false) comparison = shallowEqual;14 if (comparison === true) comparison = deepEqual;15 let isValid = true;16 const valueRef = useRef();17 if (valueRef.current) {18 isValid = !deps || !!(19 deps &&20 valueRef.current.deps &&21 comparison(deps, valueRef.current.deps)22 );23 } else {24 valueRef.current = {25 deps,26 result: factory(),27 };28 }29 const cache = isValid ? valueRef.current : { deps, result: factory() };30 // must update immediately so any sync renders here don't cause an infinite loop31 valueRef.current = cache;32 return cache.result;...
useChildren.js
Source: useChildren.js
...23 if (valueRef.current) {24 isValid = !!(25 deps &&26 valueRef.current.deps &&27 areHookInputsEqual(deps, valueRef.current.deps)28 );29 } else {30 valueRef.current = {31 deps,32 result: factory(),33 };34 }35 const cache = isValid ? valueRef.current : { deps, result: factory() };36 // must update immediately so any sync renders here don't cause an infinite loop37 valueRef.current = cache;38 return cache.result;...
Using AI Code Generation
1const { areHookInputsEqual } = require('playwright-core/lib/utils/utils');2const { chromium } = require('playwright-core');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const input1 = await page.$('input');8 const input2 = await page.$('input');9 console.log(areHookInputsEqual(input1, input2));10 await browser.close();11})();
Using AI Code Generation
1const { areHookInputsEqual } = require('playwright/lib/utils/utils');2const { areHookInputsEqual } = require('playwright/lib/utils/utils');3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.screenshot({ path: `example.png` });9 await browser.close();10})();11const { chromium } = require('playwright');12(async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 await page.screenshot({ path: `example.png` });17 await browser.close();18})();19const { chromium } = require('playwright');20(async () => {21 const browser = await chromium.launch();22 const context = await browser.newContext();23 const page = await context.newPage();24 await page.screenshot({ path: `example.png` });25 await browser.close();26})();27const { chromium } = require('playwright');28(async () => {29 const browser = await chromium.launch();30 const context = await browser.newContext();31 const page = await context.newPage();32 await page.screenshot({ path: `example.png` });33 await browser.close();34})();35const { chromium } = require('playwright');36(async () => {37 const browser = await chromium.launch();38 const context = await browser.newContext();39 const page = await context.newPage();40 await page.screenshot({ path: `example.png` });41 await browser.close();42})();43const { chromium } = require('playwright');44(async () => {45 const browser = await chromium.launch();46 const context = await browser.newContext();47 const page = await context.newPage();48 await page.screenshot({ path: `example.png` });49 await browser.close();50})();
Using AI Code Generation
1const { InternalAPI } = require('@playwright/test');2console.log(InternalAPI.areHookInputsEqual([1,2,3], [1,2,3]));3console.log(InternalAPI.areHookInputsEqual([1,2,3], [1,2,3,4]));4console.log(InternalAPI.areHookInputsEqual([1,2,3,4], [1,2,3]));5console.log(InternalAPI.areHookInputsEqual([1,2,3], [1,2,4]));6console.log(InternalAPI.areHookInputsEqual({a:1, b:2}, {a:1, b:2}));7console.log(InternalAPI.areHookInputsEqual({a:1, b:2}, {a:1, b:2, c:3}));8console.log(InternalAPI.areHookInputsEqual({a:1, b:2, c:3}, {a:1, b:2}));9console.log(InternalAPI.areHookInputsEqual({a:1, b:2}, {a:1, b:3}));10console.log(InternalAPI.areHookInputsEqual({a:1, b:2}, {a:1, b:3, c:4}));11console.log(InternalAPI.areHookInputsEqual({a:1, b:2, c:4}, {a:1, b:3}));12console.log(InternalAPI.areHookInputsEqual({a:1, b:2}, {a:1, b:3, c:4}));13console.log(InternalAPI.areHookInputsEqual({a:1, b:2, c:4}, {a:1, b:3, c:4}));14console.log(InternalAPI.areHookInputsEqual({a:1, b:2, c:4}, {a:1, b:3, c:5}));
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const input = await page.$('input[name="q"]');7 await input.fill('Hello World!');8 const input2 = await page.$('input[name="q"]');9 await input2.fill('Hello World!');10 const internal = page._delegate._page;11 const areEqual = await internal.areHookInputsEqual(12 );13 console.log(areEqual);14 await browser.close();15})();
Using AI Code Generation
1const { areHookInputsEqual } = require('@playwright/test/lib/test');2const { test } = require('@playwright/test');3test('test', async ({ page }) => {4});5const { areHookInputsEqual } = require('@playwright/test/lib/test');6const { test } = require('@playwright/test');7test('test', async ({ page }) => {8});9const { areHookInputsEqual } = require('@playwright/test/lib/test');10const { test } = require('@playwright/test');11test('test', async ({ page }) => {12});13const { areHookInputsEqual } = require('@playwright/test/lib/test');14const { test } = require('@playwright/test');15test('test', async ({ page }) => {16});17const { areHookInputsEqual } = require('@playwright/test/lib/test');18const { test } = require('@playwright/test');19test('test', async ({ page }) => {20});21const { areHookInputsEqual } = require('@playwright/test/lib/test');22const { test } = require('@playwright/test');23test('test', async ({ page }) => {24});25const { areHookInputsEqual } = require('@playwright/test/lib/test');26const { test } = require('@playwright/test');27test('test', async ({ page }) => {28});29const { areHookInputsEqual } = require('@playwright/test/lib/test');30const { test } = require('@playwright/test');31test('test', async ({ page }) => {32});
Using AI Code Generation
1const { areHookInputsEqual } = require('playwright-core/lib/server/frames');2const { Frame } = require('playwright-core/lib/server/frames');3const frame = new Frame();4const obj1 = {a: 1, b: 2}5const obj2 = {a: 1, b: 2}6const isEqual = areHookInputsEqual(obj1, obj2);7const obj3 = {a: 1, b: 2}8const obj4 = {a: 2, b: 2}9const isEqual2 = areHookInputsEqual(obj3, obj4);10const obj5 = {a: 1, b: 2}11const obj6 = {a: 1, b: 2, c: 3}12const isEqual3 = areHookInputsEqual(obj5, obj6);13const obj7 = {a: 1, b: 2}14const obj8 = {a: 1, b: 2, c: 3}15const isEqual4 = areHookInputsEqual(obj7, obj8);16const obj9 = {a: 1, b: 2}17const obj10 = {a: 1, b: 2, c: 3}18const isEqual5 = areHookInputsEqual(obj9, obj10);19const obj11 = {a: 1, b: 2, c: 3}20const obj12 = {a: 1, b: 2}
Using AI Code Generation
1const { TestWatcher } = require('@jest/core');2const { areHookInputsEqual } = require('playwright-core/lib/utils/utils');3const { test } = require('@jest/globals');4test('should check if hook inputs are equal', () => {5 const hook1 = {6 {7 },8 {9 },10 };11 const hook2 = {12 {13 },14 {15 },16 };17 const hook3 = {18 {19 },20 {21 },22 };23 expect(areHookInputsEqual(hook1, hook2)).toBe(true);24 expect(areHookInputsEqual(hook1, hook3)).toBe(false);25});
Jest + Playwright - Test callbacks of event-based DOM library
firefox browser does not start in playwright
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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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