Best JavaScript code snippet using puppeteer
Browser.js
Source:Browser.js
...71 }72 /**73 * @param {?string} contextId74 */75 async _disposeContext(contextId) {76 await this._connection.send('Target.disposeBrowserContext', {browserContextId: contextId || undefined});77 this._contexts.delete(contextId);78 }79 /**80 * @param {!Puppeteer.Connection} connection81 * @param {!Array<string>} contextIds82 * @param {boolean} ignoreHTTPSErrors83 * @param {?Puppeteer.Viewport} defaultViewport84 * @param {?Puppeteer.ChildProcess} process85 * @param {function()=} closeCallback86 */87 static async create(connection, contextIds, ignoreHTTPSErrors, defaultViewport, process, closeCallback) {88 const browser = new Browser(connection, contextIds, ignoreHTTPSErrors, defaultViewport, process, closeCallback);89 await connection.send('Target.setDiscoverTargets', {discover: true});90 return browser;91 }92 /**93 * @param {!Protocol.Target.targetCreatedPayload} event94 */95 async _targetCreated(event) {96 const targetInfo = event.targetInfo;97 const {browserContextId} = targetInfo;98 const context = (browserContextId && this._contexts.has(browserContextId)) ? this._contexts.get(browserContextId) : this._defaultContext;99 const target = new Target(targetInfo, context, () => this._connection.createSession(targetInfo), this._ignoreHTTPSErrors, this._defaultViewport, this._screenshotTaskQueue);100 assert(!this._targets.has(event.targetInfo.targetId), 'Target should not exist before targetCreated');101 this._targets.set(event.targetInfo.targetId, target);102 if (await target._initializedPromise) {103 this.emit(Browser.Events.TargetCreated, target);104 context.emit(BrowserContext.Events.TargetCreated, target);105 }106 }107 /**108 * @param {{targetId: string}} event109 */110 async _targetDestroyed(event) {111 const target = this._targets.get(event.targetId);112 target._initializedCallback(false);113 this._targets.delete(event.targetId);114 target._closedCallback();115 if (await target._initializedPromise) {116 this.emit(Browser.Events.TargetDestroyed, target);117 target.browserContext().emit(BrowserContext.Events.TargetDestroyed, target);118 }119 }120 /**121 * @param {!Protocol.Target.targetInfoChangedPayload} event122 */123 _targetInfoChanged(event) {124 const target = this._targets.get(event.targetInfo.targetId);125 assert(target, 'target should exist before targetInfoChanged');126 const previousURL = target.url();127 const wasInitialized = target._isInitialized;128 target._targetInfoChanged(event.targetInfo);129 if (wasInitialized && previousURL !== target.url()) {130 this.emit(Browser.Events.TargetChanged, target);131 target.browserContext().emit(BrowserContext.Events.TargetChanged, target);132 }133 }134 /**135 * @return {string}136 */137 wsEndpoint() {138 return this._connection.url();139 }140 /**141 * @return {!Promise<!Puppeteer.Page>}142 */143 async newPage() {144 return this._defaultContext.newPage();145 }146 /**147 * @param {string} contextId148 * @return {!Promise<!Puppeteer.Page>}149 */150 async _createPageInContext(contextId) {151 const {targetId} = await this._connection.send('Target.createTarget', {url: 'about:blank', browserContextId: contextId || undefined});152 const target = await this._targets.get(targetId);153 assert(await target._initializedPromise, 'Failed to create target for page');154 const page = await target.page();155 return page;156 }157 /**158 * @return {!Array<!Target>}159 */160 targets() {161 return Array.from(this._targets.values()).filter(target => target._isInitialized);162 }163 /**164 * @return {!Promise<!Array<!Puppeteer.Page>>}165 */166 async pages() {167 const contextPages = await Promise.all(this.browserContexts().map(context => context.pages()));168 // Flatten array.169 return contextPages.reduce((acc, x) => acc.concat(x), []);170 }171 /**172 * @return {!Promise<string>}173 */174 async version() {175 const version = await this._getVersion();176 return version.product;177 }178 /**179 * @return {!Promise<string>}180 */181 async userAgent() {182 const version = await this._getVersion();183 return version.userAgent;184 }185 async close() {186 await this._closeCallback.call(null);187 this.disconnect();188 }189 disconnect() {190 this._connection.dispose();191 }192 /**193 * @return {!Promise<!Object>}194 */195 _getVersion() {196 return this._connection.send('Browser.getVersion');197 }198}199/** @enum {string} */200Browser.Events = {201 TargetCreated: 'targetcreated',202 TargetDestroyed: 'targetdestroyed',203 TargetChanged: 'targetchanged',204 Disconnected: 'disconnected'205};206class BrowserContext extends EventEmitter {207 /**208 * @param {!Browser} browser209 * @param {?string} contextId210 */211 constructor(browser, contextId) {212 super();213 this._browser = browser;214 this._id = contextId;215 }216 /**217 * @return {!Array<!Target>} target218 */219 targets() {220 return this._browser.targets().filter(target => target.browserContext() === this);221 }222 /**223 * @return {!Promise<!Array<!Puppeteer.Page>>}224 */225 async pages() {226 const pages = await Promise.all(227 this.targets()228 .filter(target => target.type() === 'page')229 .map(target => target.page())230 );231 return pages.filter(page => !!page);232 }233 /**234 * @return {boolean}235 */236 isIncognito() {237 return !!this._id;238 }239 /**240 * @return {!Promise<!Puppeteer.Page>}241 */242 newPage() {243 return this._browser._createPageInContext(this._id);244 }245 /**246 * @return {!Browser}247 */248 browser() {249 return this._browser;250 }251 async close() {252 assert(this._id, 'Non-incognito profiles cannot be closed!');253 await this._browser._disposeContext(this._id);254 }255}256/** @enum {string} */257BrowserContext.Events = {258 TargetCreated: 'targetcreated',259 TargetDestroyed: 'targetdestroyed',260 TargetChanged: 'targetchanged',261};262helper.tracePublicAPI(BrowserContext);263helper.tracePublicAPI(Browser);264module.exports = {Browser, BrowserContext};265/**266 * @typedef {Object} BrowserOptions267 * @property {boolean=} setDefaultViewport...
Using AI Code Generation
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 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: 'example.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: 'example.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: 'example.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: 'example.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: 'example.png'});41 await browser.close();42})();43const puppeteer = require('puppeteer');44(async () => {45 const browser = await puppeteer.launch();
Using AI Code Generation
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._disposeContext();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._dispose();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._disposeContext();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._dispose();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._disposeContext();42})();43const puppeteer = require('puppeteer');44(async () => {45 const browser = await puppeteer.launch();
Using AI Code Generation
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 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: 'example.png'});13 await browser._disposeContext();14})();15at CDPSession.send (/home/username/Desktop/NodeJS/puppeteer/node_modules/puppeteer/lib/Connection.js:170:35)16at async Target._dispose (/home/username/Desktop/NodeJS/puppeteer/node_modules/puppeteer/lib/Target.js:86:9)17at async Browser._disposeContext (/home/username/Desktop/NodeJS/puppeteer/node_modules/puppeteer/lib/Browser.js:157:9)18at async Object.<anonymous> (/home/username/Desktop/NodeJS/puppeteer/test.js:8:3)19at async Module._compile (internal/modules/cjs/loader.js:999:30)20at async Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)21at async Module.load (internal/modules/cjs/loader.js:863:32)22at async Function.Module._load (internal/modules/cjs/loader.js:708:14)23at async Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:60:12)
Using AI Code Generation
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 await browser._disposeContext();7})();
Using AI Code Generation
1const puppeteer = require('puppeteer');2const browser = await puppeteer.launch();3const page = await browser.newPage();4await page.screenshot({ path: 'google.png' });5await browser.close();6const puppeteer = require('puppeteer');7const browser = await puppeteer.launch();8const page = await browser.newPage();9await page.screenshot({ path: 'google.png' });10await browser._disposeContext();
Using AI Code Generation
1const puppeteer = require('puppeteer');2async function test() {3 const browser = await puppeteer.launch({4 });5 const page = await browser.newPage();6 await page.goto('
Using AI Code Generation
1const puppeteer = require('puppeteer');2(async () => {3 const browser = await puppeteer.launch({ headless: false });4 const page = await browser.newPage();5 await page.waitFor(5000);6 await browser._disposeContext();7})();
Using AI Code Generation
1const puppeteer = require('puppeteer');2const _disposeContext = require('puppeteer/lib/Page').prototype._disposeContext;3async function main() {4 const browser = await puppeteer.launch({5 });6 const page = await browser.newPage();7 await page.waitForSelector('button');8 await _disposeContext.call(page);9 await page.waitForSelector('button');10}11main();12 document.querySelector('button').addEventListener('click', () => {13 alert('Hello');14 });15{16 "scripts": {17 },18 "dependencies": {19 }20}21const express = require('express');22const app = express();23app.use(express.static('public'));24app.listen(5000, () => console.log('Listening on port 5000'));
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