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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 è®ºç»ä»¶è§å¾æ¯å¦éè¦æ´æ°æä»¬ç»ä»¶åé¨çè½¬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 å¹¶ä¸æ§è¡è¿åç»ææ¯TRUEçæ¶åæä»¬æä¼è¿è¡æ´æ° å¦åçè¯å°±ç´æ¥è¿ååæ¢æ§è¡ è¿æ ·ä¹è¿è¡äºæä»¬ç»ä»¶åé¨å¦ææ²¡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§æåµ12    // 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');

Playwright tutorial

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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.
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