How to use executionContext method in Puppeteer

Best JavaScript code snippet using puppeteer

ConsoleContextSelector.js

Source:ConsoleContextSelector.js Github

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...277 * @return {boolean}278 */279 isItemSelectable(item) {280 const callFrame = item.debuggerModel.selectedCallFrame();281 const callFrameContext = callFrame && callFrame.script.executionContext();282 return !callFrameContext || item === callFrameContext;283 }284 /**285 * @override286 * @param {?SDK.ExecutionContext} item287 */288 itemSelected(item) {289 this._toolbarItem.element.classList.toggle('warning', !this._isTopContext(item) && this._hasTopContext());290 UI.context.setFlavor(SDK.ExecutionContext, item);291 }292 _callFrameSelectedInUI() {293 const callFrame = UI.context.flavor(SDK.DebuggerModel.CallFrame);294 const callFrameContext = callFrame && callFrame.script.executionContext();295 if (callFrameContext)296 UI.context.setFlavor(SDK.ExecutionContext, callFrameContext);297 }298 /**299 * @param {!Common.Event} event300 */301 _callFrameSelectedInModel(event) {302 const debuggerModel = /** @type {!SDK.DebuggerModel} */ (event.data);303 for (const executionContext of this._items) {304 if (executionContext.debuggerModel === debuggerModel) {305 this._disposeExecutionContextBadge(executionContext);306 this._dropDown.refreshItem(executionContext);307 }308 }...

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ExecutionContextSelector.js

Source:ExecutionContextSelector.js Github

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1// Copyright 2014 The Chromium Authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4/**5 * @implements {SDK.TargetManager.Observer}6 * @unrestricted7 */8Main.ExecutionContextSelector = class {9 /**10 * @param {!SDK.TargetManager} targetManager11 * @param {!UI.Context} context12 */13 constructor(targetManager, context) {14 targetManager.observeTargets(this, SDK.Target.Capability.JS);15 context.addFlavorChangeListener(SDK.ExecutionContext, this._executionContextChanged, this);16 context.addFlavorChangeListener(SDK.Target, this._targetChanged, this);17 targetManager.addModelListener(18 SDK.RuntimeModel, SDK.RuntimeModel.Events.ExecutionContextCreated, this._onExecutionContextCreated, this);19 targetManager.addModelListener(20 SDK.RuntimeModel, SDK.RuntimeModel.Events.ExecutionContextDestroyed, this._onExecutionContextDestroyed, this);21 targetManager.addModelListener(22 SDK.RuntimeModel, SDK.RuntimeModel.Events.ExecutionContextOrderChanged, this._onExecutionContextOrderChanged,23 this);24 this._targetManager = targetManager;25 this._context = context;26 }27 /**28 * @override29 * @param {!SDK.Target} target30 */31 targetAdded(target) {32 // Defer selecting default target since we need all clients to get their33 // targetAdded notifications first.34 setImmediate(deferred.bind(this));35 /**36 * @this {Main.ExecutionContextSelector}37 */38 function deferred() {39 // We always want the second context for the service worker targets.40 if (!this._context.flavor(SDK.Target))41 this._context.setFlavor(SDK.Target, target);42 }43 }44 /**45 * @override46 * @param {!SDK.Target} target47 */48 targetRemoved(target) {49 const currentExecutionContext = this._context.flavor(SDK.ExecutionContext);50 if (currentExecutionContext && currentExecutionContext.target() === target)51 this._currentExecutionContextGone();52 const targets = this._targetManager.targets(SDK.Target.Capability.JS);53 if (this._context.flavor(SDK.Target) === target && targets.length)54 this._context.setFlavor(SDK.Target, targets[0]);55 }56 /**57 * @param {!Common.Event} event58 */59 _executionContextChanged(event) {60 const newContext = /** @type {?SDK.ExecutionContext} */ (event.data);61 if (newContext) {62 this._context.setFlavor(SDK.Target, newContext.target());63 if (!this._ignoreContextChanged)64 this._lastSelectedContextId = this._contextPersistentId(newContext);65 }66 }67 /**68 * @param {!SDK.ExecutionContext} executionContext69 * @return {string}70 */71 _contextPersistentId(executionContext) {72 return executionContext.isDefault ? executionContext.target().name() + ':' + executionContext.frameId : '';73 }74 /**75 * @param {!Common.Event} event76 */77 _targetChanged(event) {78 const newTarget = /** @type {?SDK.Target} */ (event.data);79 const currentContext = this._context.flavor(SDK.ExecutionContext);80 if (!newTarget || (currentContext && currentContext.target() === newTarget))81 return;82 const runtimeModel = newTarget.model(SDK.RuntimeModel);83 const executionContexts = runtimeModel ? runtimeModel.executionContexts() : [];84 if (!executionContexts.length)85 return;86 let newContext = null;87 for (let i = 0; i < executionContexts.length && !newContext; ++i) {88 if (this._shouldSwitchToContext(executionContexts[i]))89 newContext = executionContexts[i];90 }91 for (let i = 0; i < executionContexts.length && !newContext; ++i) {92 if (this._isDefaultContext(executionContexts[i]))93 newContext = executionContexts[i];94 }95 this._ignoreContextChanged = true;96 this._context.setFlavor(SDK.ExecutionContext, newContext || executionContexts[0]);97 this._ignoreContextChanged = false;98 }99 /**100 * @param {!SDK.ExecutionContext} executionContext101 * @return {boolean}102 */103 _shouldSwitchToContext(executionContext) {104 if (this._lastSelectedContextId && this._lastSelectedContextId === this._contextPersistentId(executionContext))105 return true;106 if (!this._lastSelectedContextId && this._isDefaultContext(executionContext))107 return true;108 return false;109 }110 /**111 * @param {!SDK.ExecutionContext} executionContext112 * @return {boolean}113 */114 _isDefaultContext(executionContext) {115 if (!executionContext.isDefault || !executionContext.frameId)116 return false;117 if (executionContext.target().parentTarget())118 return false;119 const resourceTreeModel = executionContext.target().model(SDK.ResourceTreeModel);120 const frame = resourceTreeModel && resourceTreeModel.frameForId(executionContext.frameId);121 if (frame && frame.isTopFrame())122 return true;123 return false;124 }125 /**126 * @param {!Common.Event} event127 */128 _onExecutionContextCreated(event) {129 this._switchContextIfNecessary(/** @type {!SDK.ExecutionContext} */ (event.data));130 }131 /**132 * @param {!Common.Event} event133 */134 _onExecutionContextDestroyed(event) {135 const executionContext = /** @type {!SDK.ExecutionContext}*/ (event.data);136 if (this._context.flavor(SDK.ExecutionContext) === executionContext)137 this._currentExecutionContextGone();138 }139 /**140 * @param {!Common.Event} event141 */142 _onExecutionContextOrderChanged(event) {143 const runtimeModel = /** @type {!SDK.RuntimeModel} */ (event.data);144 const executionContexts = runtimeModel.executionContexts();145 for (let i = 0; i < executionContexts.length; i++) {146 if (this._switchContextIfNecessary(executionContexts[i]))147 break;148 }149 }150 /**151 * @param {!SDK.ExecutionContext} executionContext152 * @return {boolean}153 */154 _switchContextIfNecessary(executionContext) {155 if (!this._context.flavor(SDK.ExecutionContext) || this._shouldSwitchToContext(executionContext)) {156 this._ignoreContextChanged = true;157 this._context.setFlavor(SDK.ExecutionContext, executionContext);158 this._ignoreContextChanged = false;159 return true;160 }161 return false;162 }163 _currentExecutionContextGone() {164 const runtimeModels = this._targetManager.models(SDK.RuntimeModel);165 let newContext = null;166 for (let i = 0; i < runtimeModels.length && !newContext; ++i) {167 const executionContexts = runtimeModels[i].executionContexts();168 for (const executionContext of executionContexts) {169 if (this._isDefaultContext(executionContext)) {170 newContext = executionContext;171 break;172 }173 }174 }175 if (!newContext) {176 for (let i = 0; i < runtimeModels.length && !newContext; ++i) {177 const executionContexts = runtimeModels[i].executionContexts();178 if (executionContexts.length) {179 newContext = executionContexts[0];180 break;181 }182 }183 }184 this._ignoreContextChanged = true;185 this._context.setFlavor(SDK.ExecutionContext, newContext);186 this._ignoreContextChanged = false;187 }...

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ExecutionContextModel.js

Source:ExecutionContextModel.js Github

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1// Copyright 2015 The Chromium Authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4/**5 * @constructor6 * @implements {WebInspector.TargetManager.Observer}7 * @param {!Element} selectElement8 */9WebInspector.ExecutionContextModel = function(selectElement)10{11 this._selectElement = selectElement;12 /**13 * @type {!Map.<!WebInspector.ExecutionContext, !Element>}14 */15 this._optionByExecutionContext = new Map();16 WebInspector.targetManager.observeTargets(this);17 WebInspector.targetManager.addModelListener(WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextCreated, this._onExecutionContextCreated, this);18 WebInspector.targetManager.addModelListener(WebInspector.RuntimeModel, WebInspector.RuntimeModel.Events.ExecutionContextDestroyed, this._onExecutionContextDestroyed, this);19 WebInspector.targetManager.addModelListener(WebInspector.ResourceTreeModel, WebInspector.ResourceTreeModel.EventTypes.FrameNavigated, this._onFrameNavigated, this);20 this._selectElement.addEventListener("change", this._executionContextChanged.bind(this), false);21 WebInspector.context.addFlavorChangeListener(WebInspector.ExecutionContext, this._executionContextChangedExternally, this);22}23WebInspector.ExecutionContextModel.prototype = {24 /**25 * @param {!WebInspector.ExecutionContext} executionContext26 * @return {string}27 */28 _titleFor: function(executionContext)29 {30 var result;31 if (executionContext.isMainWorldContext) {32 if (executionContext.frameId) {33 var frame = executionContext.target().resourceTreeModel.frameForId(executionContext.frameId);34 result = frame ? frame.displayName() : (executionContext.origin || executionContext.name);35 } else {36 var parsedUrl = executionContext.origin.asParsedURL();37 var name = parsedUrl? parsedUrl.lastPathComponentWithFragment() : executionContext.name;38 result = executionContext.target().decorateLabel(name);39 }40 } else {41 result = "\u00a0\u00a0\u00a0\u00a0" + (executionContext.name || executionContext.origin);42 }43 var maxLength = 50;44 return result.trimMiddle(maxLength);45 },46 /**47 * @param {!WebInspector.ExecutionContext} executionContext48 */49 _executionContextCreated: function(executionContext)50 {51 // FIXME(413886): We never want to show execution context for the main thread of shadow page in service/shared worker frontend.52 // This check could be removed once we do not send this context to frontend.53 if (executionContext.target().isServiceWorker())54 return;55 var newOption = createElement("option");56 newOption.__executionContext = executionContext;57 newOption.text = this._titleFor(executionContext);58 this._optionByExecutionContext.set(executionContext, newOption);59 var options = this._selectElement.options;60 var contexts = Array.prototype.map.call(options, mapping);61 var index = insertionIndexForObjectInListSortedByFunction(executionContext, contexts, WebInspector.ExecutionContext.comparator);62 this._selectElement.insertBefore(newOption, options[index]);63 if (executionContext === WebInspector.context.flavor(WebInspector.ExecutionContext))64 this._select(newOption);65 /**66 * @param {!Element} option67 * @return {!WebInspector.ExecutionContext}68 */69 function mapping(option)70 {71 return option.__executionContext;72 }73 },74 /**75 * @param {!WebInspector.Event} event76 */77 _onExecutionContextCreated: function(event)78 {79 var executionContext = /** @type {!WebInspector.ExecutionContext} */ (event.data);80 this._executionContextCreated(executionContext);81 },82 /**83 * @param {!WebInspector.ExecutionContext} executionContext84 */85 _executionContextDestroyed: function(executionContext)86 {87 var option = this._optionByExecutionContext.remove(executionContext);88 option.remove();89 },90 /**91 * @param {!WebInspector.Event} event92 */93 _onExecutionContextDestroyed: function(event)94 {95 var executionContext = /** @type {!WebInspector.ExecutionContext} */ (event.data);96 this._executionContextDestroyed(executionContext);97 },98 /**99 * @param {!WebInspector.Event} event100 */101 _onFrameNavigated: function(event)102 {103 var frame = /** @type {!WebInspector.ResourceTreeFrame} */ (event.data);104 var executionContexts = this._optionByExecutionContext.keysArray();105 for (var i = 0; i < executionContexts.length; ++i) {106 var context = executionContexts[i];107 if (context.frameId === frame.id)108 this._optionByExecutionContext.get(context).text = this._titleFor(context);109 }110 },111 /**112 * @param {!WebInspector.Event} event113 */114 _executionContextChangedExternally: function(event)115 {116 var executionContext = /** @type {?WebInspector.ExecutionContext} */ (event.data);117 if (!executionContext)118 return;119 var options = this._selectElement.options;120 for (var i = 0; i < options.length; ++i) {121 if (options[i].__executionContext === executionContext)122 this._select(options[i]);123 }124 },125 _executionContextChanged: function()126 {127 var option = this._selectedOption();128 var newContext = option ? option.__executionContext : null;129 WebInspector.context.setFlavor(WebInspector.ExecutionContext, newContext);130 },131 /**132 * @override133 * @param {!WebInspector.Target} target134 */135 targetAdded: function(target)136 {137 target.runtimeModel.executionContexts().forEach(this._executionContextCreated, this);138 },139 /**140 * @override141 * @param {!WebInspector.Target} target142 */143 targetRemoved: function(target)144 {145 var executionContexts = this._optionByExecutionContext.keysArray();146 for (var i = 0; i < executionContexts.length; ++i) {147 if (executionContexts[i].target() === target)148 this._executionContextDestroyed(executionContexts[i]);149 }150 },151 /**152 * @param {!Element} option153 */154 _select: function(option)155 {156 this._selectElement.selectedIndex = Array.prototype.indexOf.call(/** @type {?} */ (this._selectElement), option);157 },158 /**159 * @return {?Element}160 */161 _selectedOption: function()162 {163 if (this._selectElement.selectedIndex >= 0)164 return this._selectElement[this._selectElement.selectedIndex];165 return null;166 }...

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ObjectEventListenersSidebarPane.js

Source:ObjectEventListenersSidebarPane.js Github

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1// Copyright 2015 The Chromium Authors. All rights reserved.2// Use of this source code is governed by a BSD-style license that can be3// found in the LICENSE file.4/**5 * @implements {UI.ToolbarItem.ItemsProvider}6 * @unrestricted7 */8BrowserDebugger.ObjectEventListenersSidebarPane = class extends UI.VBox {9 constructor() {10 super();11 this._refreshButton = new UI.ToolbarButton(Common.UIString('Refresh'), 'largeicon-refresh');12 this._refreshButton.addEventListener(UI.ToolbarButton.Events.Click, this._refreshClick, this);13 this._refreshButton.setEnabled(false);14 this._eventListenersView = new EventListeners.EventListenersView(this.update.bind(this));15 this._eventListenersView.show(this.element);16 }17 /**18 * @override19 * @return {!Array<!UI.ToolbarItem>}20 */21 toolbarItems() {22 return [this._refreshButton];23 }24 update() {25 if (this._lastRequestedContext) {26 this._lastRequestedContext.runtimeModel.releaseObjectGroup(27 BrowserDebugger.ObjectEventListenersSidebarPane._objectGroupName);28 delete this._lastRequestedContext;29 }30 const executionContext = UI.context.flavor(SDK.ExecutionContext);31 if (!executionContext) {32 this._eventListenersView.reset();33 this._eventListenersView.addEmptyHolderIfNeeded();34 return;35 }36 this._lastRequestedContext = executionContext;37 Promise.all([this._windowObjectInContext(executionContext)])38 .then(this._eventListenersView.addObjects.bind(this._eventListenersView));39 }40 /**41 * @override42 */43 wasShown() {44 super.wasShown();45 UI.context.addFlavorChangeListener(SDK.ExecutionContext, this.update, this);46 this._refreshButton.setEnabled(true);47 this.update();48 }49 /**50 * @override51 */52 willHide() {53 super.willHide();54 UI.context.removeFlavorChangeListener(SDK.ExecutionContext, this.update, this);55 this._refreshButton.setEnabled(false);56 }57 /**58 * @param {!SDK.ExecutionContext} executionContext59 * @return {!Promise<?SDK.RemoteObject>} object60 */61 _windowObjectInContext(executionContext) {62 return executionContext63 .evaluate(64 {65 expression: 'self',66 objectGroup: BrowserDebugger.ObjectEventListenersSidebarPane._objectGroupName,67 includeCommandLineAPI: false,68 silent: true,69 returnByValue: false,70 generatePreview: false71 },72 /* userGesture */ false,73 /* awaitPromise */ false)74 .then(result => result.object && !result.exceptionDetails ? result.object : null);75 }76 /**77 * @param {!Common.Event} event78 */79 _refreshClick(event) {80 event.data.consume();81 this.update();82 }83};...

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 await page.screenshot({path: 'example.png'});6 const executionContext = await page.mainFrame().executionContext();7 const result = await executionContext.evaluate(() => {8 return Promise.resolve(8 * 7);9 });10 console.log(result);11 await browser.close();12})();13const puppeteer = require('puppeteer');14(async () => {15 const browser = await puppeteer.launch();16 const page = await browser.newPage();17 await page.screenshot({path: 'example.png'});18 const aHandle = await page.evaluateHandle(() => document.body);19 const resultHandle = await page.evaluateHandle(body => body.innerHTML, aHandle);20 console.log(await resultHandle.jsonValue());21 await browser.close();22})();23const puppeteer = require('puppeteer');24(async () => {25 const browser = await puppeteer.launch();26 const page = await browser.newPage();27 await page.screenshot({path: 'example.png'});28 await page.evaluateOnNewDocument(() => {29 navigator.geolocation.getCurrentPosition = (success, failure) => {30 success({31 coords: {32 },33 });34 };35 });36 await page.waitForSelector('button[title="Your location"]');37 await page.click('button[title="Your location"]');38 await browser.close();39})();40const puppeteer = require('puppeteer');41(async () => {42 const browser = await puppeteer.launch();43 const page = await browser.newPage();44 await page.screenshot({path: 'example.png

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({4 });5 const page = await browser.newPage();6 await page.screenshot({ path: 'example.png' });7 await browser.close();8})();9const puppeteer = require('puppeteer');10(async () => {11 const browser = await puppeteer.launch({12 });13 const page = await browser.newPage();14 await page.screenshot({ path: 'example1.png' });15 await browser.close();16})();17const puppeteer = require('puppeteer');18(async () => {19 const browser = await puppeteer.launch({20 });21 const page = await browser.newPage();22 await page.screenshot({ path: 'example2.png' });23 await browser.close();24})();25const puppeteer = require('puppeteer');26(async () => {27 const browser = await puppeteer.launch({28 });29 const page = await browser.newPage();30 await page.screenshot({ path: 'example3.png' });31 await browser.close();32})();33const puppeteer = require('puppeteer');34(async () => {35 const browser = await puppeteer.launch({36 });37 const page = await browser.newPage();38 await page.screenshot({ path: 'example4.png' });

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({4 });5 const page = await browser.newPage();6 await page.type('input[name="q"]', 'puppeteer');7 await page.keyboard.press('Enter');8 await page.waitForNavigation();9 await page.waitForSelector('div[id="rso"] a');10 const links = await page.$$('div[id="rso"] a');11 const linksArray = [];12 for (let i = 0; i < links.length; i++) {13 const link = await page.evaluate(element => element.getAttribute('href'), links[i]);14 linksArray.push(link);15 }16 console.log(linksArray);17 await browser.close();18})();19const puppeteer = require('puppeteer');20(async () => {21 const browser = await puppeteer.launch({22 });23 const page = await browser.newPage();24 await page.type('input[name="q"]', 'puppeteer');25 await page.keyboard.press('Enter');26 await page.waitForNavigation();27 await page.waitForSelector('div[id="rso"] a');28 const links = await page.$$('div[id="rso"] a');29 const linksArray = [];30 for (let i = 0; i < links.length; i++) {31 const link = await page.evaluate(element => element.getAttribute('href'), links[i]);32 linksArray.push(link);33 }34 console.log(linksArray);35 await browser.close();36})();37const puppeteer = require('puppeteer');38(async () => {39 const browser = await puppeteer.launch({40 });41 const page = await browser.newPage();42 await page.type('input[name="q"]', 'puppeteer');43 await page.keyboard.press('Enter');

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1(async () => {2 const browser = await puppeteer.launch();3 const page = await browser.newPage();4 const context = await browser.createIncognitoBrowserContext();5 const page1 = await context.newPage();6 await page1.screenshot({path: 'google.png'});7 await browser.close();8})();

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({headless: false});4 const page = await browser.newPage();5 const dimensions = await page.evaluate(() => {6 return {7 };8 });9 console.log('Dimensions:', dimensions);10 await browser.close();11})();

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1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 await page.screenshot({ path: 'google.png' });6 await browser.close();7})();8const puppeteer = require('puppeteer');9(async () => {10 const browser = await puppeteer.launch();11 const page = await browser.newPage();12 await page.screenshot({ path: 'google.png' });13 await browser.close();14})();15const puppeteer = require('puppeteer');16(async () => {17 const browser = await puppeteer.launch();18 const page = await browser.newPage();19 await page.screenshot({ path: 'google.png' });20 await browser.close();21})();22const puppeteer = require('puppeteer');23(async () => {24 const browser = await puppeteer.launch();25 const page = await browser.newPage();26 await page.screenshot({ path: 'google.png' });27 await browser.close();28})();29const puppeteer = require('puppeteer');30(async () => {31 const browser = await puppeteer.launch();32 const page = await browser.newPage();33 await page.screenshot({ path: 'google.png' });34 await browser.close();35})();36const puppeteer = require('puppeteer');37(async () => {38 const browser = await puppeteer.launch();39 const page = await browser.newPage();40 await page.screenshot({ path: 'google.png' });41 await browser.close();42})();43const puppeteer = require('puppeteer');44(async () => {45 const browser = await puppeteer.launch();

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1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4 const browser = await puppeteer.launch();5 const page = await browser.newPage();6 const context = await browser.createIncognitoBrowserContext();7 const contextPage = await context.newPage();8 await page.screenshot({path: 'google.png'});9 await contextPage.screenshot({path: 'google-incognito.png'});10 await browser.close();11})();12const puppeteer = require('puppeteer');13const fs = require('fs');14(async () => {15 const browser = await puppeteer.launch();16 const page = await browser.newPage();17 const context = await browser.createIncognitoBrowserContext();18 const contextPage = await context.newPage();19 await page.screenshot({path: 'google.png'});20 await contextPage.screenshot({path: 'google-incognito.png'});21 await browser.close();22})();23const puppeteer = require('puppeteer');24const fs = require('fs');25(async () => {26 const browser = await puppeteer.launch();27 const page = await browser.newPage();28 const context = await browser.createIncognitoBrowserContext();29 const contextPage = await context.newPage();30 await page.screenshot({path: 'google.png'});31 await contextPage.screenshot({path: 'google-incognito.png'});32 await browser.close();33})();34const puppeteer = require('puppeteer');35const fs = require('fs');36(async () => {37 const browser = await puppeteer.launch();38 const page = await browser.newPage();39 const context = await browser.createIncognitoBrowserContext();40 const contextPage = await context.newPage();41 await page.screenshot({path: 'google.png'});

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1const puppeteer = require("puppeteer");2(async () => {3 const browser = await puppeteer.launch();4 const page = await browser.newPage();5 const executionContext = await page.mainFrame().executionContext();6 const result = await executionContext.evaluate(() => {7 return 7 * 8;8 });9 await browser.close();10})();11const puppeteer = require("puppeteer");12(async () => {13 const browser = await puppeteer.launch();14 const page = await browser.newPage();15 const executionContext = await page.mainFrame().executionContext();16 const result = await executionContext.evaluate(() => {17 return 7 * 8;18 });19 await browser.close();20})();21const puppeteer = require("puppeteer");22(async () => {23 const browser = await puppeteer.launch();24 const page = await browser.newPage();25 const executionContext = await page.mainFrame().executionContext();26 const result = await executionContext.evaluate(() => {27 return 7 * 8;28 });29 await browser.close();30})();31const puppeteer = require("puppeteer");32(async () => {33 const browser = await puppeteer.launch();34 const page = await browser.newPage();35 const executionContext = await page.mainFrame().executionContext();36 const result = await executionContext.evaluate(() => {37 return 7 * 8;38 });39 await browser.close();40})();41const puppeteer = require("puppeteer");42(async () => {43 const browser = await puppeteer.launch();44 const page = await browser.newPage();45 const executionContext = await page.mainFrame().executionContext();

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1const puppeteer = require('puppeteer');2const fs = require('fs');3const path = require('path');4(async () => {5 const browser = await puppeteer.launch({6 });7 const page = await browser.newPage();8 await page.type('input[title="Search"]', 'puppeteer');9 await page.keyboard.press('Enter');10 await page.waitForSelector('div#search');11 const frames = await page.frames();12 const frame = frames.find(f => f.name() === 'iframeResult');13 const searchResults = await frame.$$('div.g');14 console.log('searchResults', searchResults);15 await page.screenshot({ path: 'google.png' });16 await browser.close();17})();18const puppeteer = require('puppeteer');19const fs = require('fs');20const path = require('path');21(async () => {22 const browser = await puppeteer.launch({23 });24 const page = await browser.newPage();25 await page.type('input[title="Search"]', 'puppeteer');26 await page.keyboard.press('Enter');27 await page.waitForSelector('div#search');28 const frames = await page.frames();29 const frame = frames.find(f => f.name() === 'iframeResult');30 const searchResults = await frame.$$('div.g');31 console.log('searchResults', searchResults);32 await page.screenshot({ path: 'google.png' });33 await browser.close();34})();35const puppeteer = require('puppeteer');36const fs = require('fs');37const path = require('path');38(async () => {39 const browser = await puppeteer.launch({40 });41 const page = await browser.newPage();42 await page.type('input[title="Search"]', 'puppeteer');43 await page.keyboard.press('Enter');44 await page.waitForSelector('div#search');45 const frames = await page.frames();

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1const puppeteer = require("puppeteer");2const { createWorker } = require('tesseract.js');3(async () => {4 const browser = await puppeteer.launch({ headless: false });5 const page = await browser.newPage();6 await page.waitForSelector("#maincounter-wrap");7 const element = await page.$("#maincounter-wrap");8 const executionContext = await element.executionContext();9 const result = await executionContext.evaluate(() => {10 const data = {};11 data.totalCases = document.querySelector("#maincounter-wrap > div > span").innerText;12 data.deaths = document.querySelector("#maincounter-wrap > div > span").innerText;13 data.recovered = document.querySelector("#maincounter-wrap > div > span").innerText;14 return data;15 });16 console.log(result);17 await browser.close();18})();19const result = await executionContext.evaluate(() => {20 const data = {};21 data.totalCases = document.querySelector("#maincounter-wrap > div > span").innerText;22 data.deaths = document.querySelector("#maincounter-wrap > div > span").innerText;23 data.recovered = document.querySelector("#maincounter-wrap > div > span").innerText;24 return data;25 });

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