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How to use shouldUpdateComponent method in Playwright Internal
Best JavaScript code snippet using playwright-internal
UI.framework.js
Source:UI.framework.js 
...84 if (instance.state !== undefined) {85 $.state(instance.state)86 $.observer(instance.state, function (prevState, newState) {87 if (instance.shouldUpdateComponent !== undefined88 && !instance.shouldUpdateComponent(prevState, newState)) {89 return90 }91 instance._render(_renderCallback)92 })93 }94 if (props !== undefined) {95 //instance.props = props96 if (instance.props.data !== undefined) {97 $.observer(instance.props.data, function (prevState, newState) {98 if (instance.shouldUpdateComponent !== undefined99 && !instance.shouldUpdateComponent(prevState, newState)) {100 return101 }102 instance._render(_renderCallback)103 })104 }105 }106 instance._render = function (callback) {107 return Handlebars.getTemplate(instance.templateName).then(function (template) {108 let fragment = BrowserDOM(template(instance.getTemplateData ? instance.getTemplateData() : null))109 return callback(instance.render(fragment))110 })111 }112 function _renderCallback (newFragment) {113 if (instance.fragment !== undefined) {...
Component.js
Source:Component.js
...15 this.updaters.length = 0;16 this.isBatchingUpdates = false;17 },18}; 19function shouldUpdateComponent(classInstance, nextProps, nextState) {20 // æ 论ç»ä»¶è§å¾æ¯å¦éè¦æ´æ°æ们ç»ä»¶å
é¨ç转å°æ¯ææ°ç21 classInstance.props = nextProps || classInstance.props;22 classInstance.state = nextState || classInstance.state;23 // è¿è¡å¤ææ¯å¦éè¦æ´æ°çå¤æ åªæshouldComponentUpdate åå¨çæ¶å 并ä¸æ§è¡è¿åç»ææ¯TRUEçæ¶åæ们æä¼è¿è¡æ´æ° å¦åçè¯å°±ç´æ¥è¿ååæ¢æ§è¡ è¿æ ·ä¹è¿è¡äºæ们ç»ä»¶å
é¨å¦æ没æåshouldUpdateComponentçæ¶åé»è®¤è¿è¡æ´æ°24 if (25 classInstance.shouldUpdateComponent &&26 !classInstance.shouldUpdateComponent(nextProps, nextState)27 ) {28 return;29 }30 classInstance.forceUpdate();31}32class Updater {33 constructor(classInstance) {34 this.classInstance = classInstance;35 this.pendingState = [];36 }37 addState(partialState) {38 this.pendingState.push(partialState);39 this.emitUpdate();40 }41 emitUpdate(nextProps) {42 this.nextProps = nextProps;43 if (this.nextProps || !updateQueue.isBatchingUpdates) {44 this.updateComponent();45 } else {46 updateQueue.add(this);47 }48 }49 updateComponent() {50 const { classInstance, pendingState, nextProps } = this;51 if (nextProps || pendingState.length) {52 // classInstance.state = this.getState();53 // classInstance.forceUpdate();54 shouldUpdateComponent(classInstance, nextProps, this.getState());55 }56 }57 getState() {58 let { classInstance, pendingState } = this;59 const { state } = classInstance;60 let nextState = state;61 if (pendingState.length) {62 pendingState.forEach((partialState) => {63 if (isFunction(partialState)) {64 nextState = { ...partialState, ...partialState(nextState) };65 } else {66 nextState = { ...nextState, ...partialState };67 }68 });...
ChildReconciler.js
Source:ChildReconciler.js
...35 let prevChild = prevChildren[childKey];36 let prevElement = prevChild && prevChild._currentElement;37 let nextElement = nextChildren[childKey];38 // Update39 if (prevChild && shouldUpdateComponent(prevElement, nextElement)) {40 // Update the existing child with the reconciler. This will recurse41 // through that component's subtree.42 Reconciler.receiveComponent(prevChild, nextElement);43 // We no longer need the new instance, so replace it with the old one.44 nextChildren[childKey] = prevChild;45 } else {46 // Otherwise47 // Remove the old child. We're replacing.48 if (prevChild) {49 // TODO: make this work for composites50 removedChildren[childKey] = prevChild._domNode;51 Reconciler.unmountComponent(prevChild);52 }53 // Instantiate the new child....
react.js
Source:react.js
...59 // Find the internal instance and update it60 let id = node.dataset[ROOT_KEY];61 let instance = instancesByRootID[id];62 let prevElem = instance_currentElement;63 if (shouldUpdateComponent(prevElem, element)) {64 // Send the new element to the instance65 Reconciler.receiveComponent(instance, element);66 } else {67 // Unmount and then mount the new one68 unmountComponentAtNode(node);69 mount(element, node);70 }71}72// This determines if we're going to end up73// reusing an internal instance or not. This is74// one of the big shortcuts that React does,75// stopping us from instantiating and comparing76// full threes. Instead we immediately throw away77// a subtree when updating from one element type78// to another.79function shouldUpdateComponent(prevElement, nextElement) {80 // Simply use element.type.81 // 'div' !== 'span'82 // ColorSwatch !== 'CounterButton'83 // Note: In React we would also look at the key.84 return prevElement.type === nextElement.type;...
Mount.js
Source:Mount.js
...47 assert(node && isRoot(node));48 // Find the internal instance and update it49 let id = node.dataset[ROOT_KEY];50 let instance = instancesByRootID[id];51 if (shouldUpdateComponent(instance, element)) {52 // TODO: do the update53 } else {54 // Unmount and then mount the new one55 unmountComponentAtNode(node);56 mount(element, node);57 }58 // TODO: update59}60function unmountComponentAtNode(node) {61 // Ensure we have a valid root node62 assert(node && isRoot(node));63 let id = node.dataset[ROOT_KEY];64 // In React we would do a batch unmount operation. This would in turn call65 // componentWillUnmount for each instance. We aren't going to support that,...
updateChildren.js
Source:updateChildren.js
...11 // ä¸ç§æ
åµ12 // 1. prev element åå¨ï¼ç±»åå next element ç¸å13 // 2. prev element åå¨ï¼ç±»åå next element ä¸åï¼å é¤åæå
¥ä¸ä¸ªæ°ç14 // 3. prev element ä¸åå¨, åºè¯¥æå
¥ä¸ä¸ªæ°ç15 if (prevElement && shouldUpdateComponent(prevElement, nextElement)) {16 // just update17 refreshComponent(prevChildComponent, nextElement);18 nextChildren[childKey] = prevChildComponent;19 } else {20 if (prevChildComponent) {21 removeNodes[childKey] = prevChildComponent._domNode;22 prevChildComponent.unmountComponent();23 }24 // insert new child25 const nextComponent = instantiateComponent(nextElement);26 nextChildren[childKey] = nextComponent;27 mountNodes.push(nextComponent.mountComponent());28 }29 });...
shouldUpdateComponent.js
Source:shouldUpdateComponent.js
1import {isArray, isString, isNumber, isObject, isNull} from '../types';2function shouldUpdateComponent(prevElement, nextElement) {3 let prevEmpty = isNull(prevElement);4 let nextEmpty = isNull(nextElement);5 if (prevEmpty || nextEmpty) {6 return prevEmpty === nextEmpty;7 }8 if (isArray(prevElement) && isArray(nextElement)) {9 return true;10 }11 const isPrevStringOrNumber = isString(prevElement) || isNumber(prevElement);12 if (isPrevStringOrNumber) {13 return isString(nextElement) || isNumber(nextElement);14 } else {15 // prevElement and nextElement could be array, typeof [] is "object"16 return (...
UserComponent.js
Source:UserComponent.js
1import React from 'react';2import ShouldUpdateComponent from './ShouldUpdateComponent';3// ShouldUpdateComponent æ¯ä¸ä¸ªå½æ° æ§è¡åè¿åä¸ä¸ªæ°å½æ° 4// å¨å½åç»ä»¶ä¸æ³¨å
¥getDerivedStateFromPropséæå±æ§5@ShouldUpdateComponent(['name'])6class UserComponent extends React.Component {7 render() {8 const { user } = this.props;9 return (10 <div>11 <p>name: {user.name}</p>12 <p>age: {user.age}</p>13 </div>14 );15 }16}...
Using AI Code Generation
1const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');2const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');3const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');4const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');5const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');6const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');7const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');8const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');9const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');10const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');11const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');12const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');13const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');14const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');15const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');16const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');17const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');18const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');19const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');20const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');21const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderSupplement');
Using AI Code Generation
1const {shouldUpdateComponent} = require('playwright/lib/server/webkit/wkPage');2const {Page} = require('playwright/lib/server/webkit/wkPage');3const {ElementHandle} = require('playwright/lib/server/webkit/wkElementHandle');4const page = new Page();5const elementHandle = new ElementHandle(page, 'some selector');6shouldUpdateComponent(elementHandle);
Using AI Code Generation
1const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');2const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');3const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');4const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');5const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');6const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');7const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');8const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');9const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');10const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');11const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');12const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');13const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');14const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');15const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');16const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');17const { shouldUpdateComponent } = require('playwright/lib/server/supplements/recorder/recorderApp');18const { Component } = require('playwright/lib/server/supplements/recorder/recorderApp');
Using AI Code Generation
1const { shouldUpdateComponent } = require('playwright/lib/server/dom.js');2const { assert } = require('chai');3describe('shouldUpdateComponent', () => {4 it('should return true if the component is updated', () => {5 const oldComponent = { name: 'div', attributes: { id: 'test' } };6 const newComponent = { name: 'div', attributes: { id: 'test' } };7 assert.strictEqual(shouldUpdateComponent(oldComponent, newComponent), true);8 });9});10const { shouldUpdateComponent } = require('playwright/lib/server/dom.js');11const { assert } = require('chai');12describe('shouldUpdateComponent', () => {13 it('should return true if the component is updated', () => {14 const oldComponent = { name: 'div', attributes: { id: 'test' } };15 const newComponent = { name: 'div', attributes: { id: 'test' } };16 assert.strictEqual(shouldUpdateComponent(oldComponent, newComponent), true);17 });18});19const { shouldUpdateComponent } = require('playwright/lib/server/dom.js');20const { assert } = require('chai');21describe('shouldUpdateComponent', () => {22 it('should return true if the component is updated', () => {23 const oldComponent = { name: 'div', attributes: { id: 'test' } };24 const newComponent = { name: 'div', attributes: { id: 'test' } };25 assert.strictEqual(shouldUpdateComponent(oldComponent, newComponent), true);26 });27});28const { shouldUpdateComponent } = require('playwright/lib/server/dom.js');29const { assert } = require('chai');30describe('shouldUpdateComponent', () => {31 it('should return true if the component is updated', () => {32 const oldComponent = { name: 'div', attributes: { id: 'test' } };33 const newComponent = { name: 'div', attributes: { id: 'test'
Using AI Code Generation
1const { shouldUpdateComponent } = require('playwright/lib/server/dom.js');2const { parse } = require('playwright/lib/server/common/parser.js');3const html = `<html><body><div id="container"><div id="child"></div></div></body></html>`;4const root = parse(html).documentElement;5const container = root.querySelector('#container');6const child = root.querySelector('#child');7const oldAttributes = container.getAttributeNames();8const newAttributes = ['id', 'class'];9const shouldUpdate = shouldUpdateComponent(oldAttributes, newAttributes);10console.log(shouldUpdate);
Using AI Code Generation
1const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');2const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');3const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');4const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');5const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');6const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');7const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');8const shouldUpdateComponent = require('playwright/lib/server/supplements/utils/shouldUpdateComponent');
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