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How to use _onScriptParsed method in Puppeteer

Best JavaScript code snippet using puppeteer

ScriptAgent.js

Source:ScriptAgent.js

...71        }72    }73    // TODO: Strip off query/hash strings from URL (see CSSAgent._canonicalize())74    // WebInspector Event: Debugger.scriptParsed75    function _onScriptParsed(event, res) {76        // res = {scriptId, url, startLine, startColumn, endLine, endColumn, isContentScript, sourceMapURL}77        _idToScript[res.scriptId] = res;78        _urlToScript[res.url] = res;79    }80    // WebInspector Event: Debugger.scriptFailedToParse81    function _onScriptFailedToParse(event, res) {82        // res = {url, scriptSource, startLine, errorLine, errorMessage}83    }84    // WebInspector Event: Debugger.paused85    function _onPaused(event, res) {86        // res = {callFrames, reason, data}87        switch (res.reason) {88        // Exception89        case "exception":...

092a980e0f10c3d5a0f320539a5e2f6d9ebd2300_11_1.js

Source:092a980e0f10c3d5a0f320539a5e2f6d9ebd2300_11_1.js

...40            _insertTrace = undefined;41        }42    }43    // WebInspector Event: Debugger.scriptParsed44    function _onScriptParsed(res) {45        // res = {scriptId, url, startLine, startColumn, endLine, endColumn, isContentScript, sourceMapURL}46        _idToScript[res.scriptId] = res;47        _urlToScript[res.url] = res;48    }49    // WebInspector Event: Debugger.scriptFailedToParse50    function _onScriptFailedToParse(res) {51        // res = {url, scriptSource, startLine, errorLine, errorMessage}52    }53    // WebInspector Event: Debugger.paused54    function _onPaused(res) {55        // res = {callFrames, reason, data}56        switch (res.reason) {57        // Exception58        case "exception":...

68030e5486ab323f874773f202f4acd09a20f287_11_1.js

Source:68030e5486ab323f874773f202f4acd09a20f287_11_1.js

...40            _insertTrace = undefined;41        }42    }43    // WebInspector Event: Debugger.scriptParsed44    function _onScriptParsed(res) {45        // res = {scriptId, url, startLine, startColumn, endLine, endColumn, isContentScript, sourceMapURL}46        _idToScript[res.scriptId] = res;47        _urlToScript[res.url] = res;48    }49    // WebInspector Event: Debugger.scriptFailedToParse50    function _onScriptFailedToParse(res) {51        // res = {url, scriptSource, startLine, errorLine, errorMessage}52    }53    // WebInspector Event: Debugger.paused54    function _onPaused(res) {55        // res = {callFrames, reason, data}56        switch (res.reason) {57        // Exception58        case "exception":...

JSCoverage.js

Source:JSCoverage.js

1const { helper, debugError, assert } = require('../helper')2const { EVALUATION_SCRIPT_URL } = require('../executionContext')3const { convertToDisjointRanges } = require('../__shared')4class JSCoverage {5  /**6   * @param {Chrome|CRIConnection|CDPSession|Object} client7   */8  constructor (client) {9    /**10     * @type {Chrome|CRIConnection|CDPSession|Object}11     * @private12     */13    this._client = client14    /**15     * @type {boolean}16     * @private17     */18    this._enabled = false19    this._scriptURLs = new Map()20    this._scriptSources = new Map()21    this._eventListeners = []22    this._resetOnNavigation = false23  }24  /**25   * @param {!{resetOnNavigation?: boolean, reportAnonymousScripts?: boolean}} options26   */27  async start (options = {}) {28    assert(!this._enabled, 'JSCoverage is already enabled')29    const { resetOnNavigation = true, reportAnonymousScripts = false } = options30    this._resetOnNavigation = resetOnNavigation31    this._reportAnonymousScripts = reportAnonymousScripts32    this._enabled = true33    this._scriptURLs.clear()34    this._scriptSources.clear()35    this._eventListeners = [36      helper.addEventListener(37        this._client,38        'Debugger.scriptParsed',39        this._onScriptParsed.bind(this)40      ),41      helper.addEventListener(42        this._client,43        'Runtime.executionContextsCleared',44        this._onExecutionContextsCleared.bind(this)45      )46    ]47    await Promise.all([48      this._client.send('Profiler.enable'),49      this._client.send('Profiler.startPreciseCoverage', {50        callCount: false,51        detailed: true52      }),53      this._client.send('Debugger.enable'),54      this._client.send('Debugger.setSkipAllPauses', { skip: true })55    ])56  }57  _onExecutionContextsCleared () {58    if (!this._resetOnNavigation) return59    this._scriptURLs.clear()60    this._scriptSources.clear()61  }62  /**63   * @param {!Object} event64   */65  async _onScriptParsed (event) {66    // Ignore puppeteer-injected scripts67    if (event.url === EVALUATION_SCRIPT_URL) return68    // Ignore other anonymous scripts unless the reportAnonymousScripts option is true.69    if (!event.url && !this._reportAnonymousScripts) return70    try {71      const response = await this._client.send('Debugger.getScriptSource', {72        scriptId: event.scriptId73      })74      this._scriptURLs.set(event.scriptId, event.url)75      this._scriptSources.set(event.scriptId, response.scriptSource)76    } catch (e) {77      // This might happen if the page has already navigated away.78      debugError(e)79      console.error(e)80    }81  }82  /**83   * @return {Promise<Array<CoverageEntry>>}84   */85  async stop () {86    assert(this._enabled, 'JSCoverage is not enabled')87    this._enabled = false88    const [profileResponse] = await Promise.all([89      this._client.send('Profiler.takePreciseCoverage'),90      this._client.send('Profiler.stopPreciseCoverage'),91      this._client.send('Profiler.disable'),92      this._client.send('Debugger.disable')93    ])94    helper.removeEventListeners(this._eventListeners)95    const coverage = []96    for (const entry of profileResponse.result) {97      let url = this._scriptURLs.get(entry.scriptId)98      if (!url && this._reportAnonymousScripts) {99        url = 'debugger://VM' + entry.scriptId100      }101      const text = this._scriptSources.get(entry.scriptId)102      if (text === undefined || url === undefined) continue103      const flattenRanges = []104      for (const func of entry.functions) flattenRanges.push(...func.ranges)105      const ranges = convertToDisjointRanges(flattenRanges)106      coverage.push({ url, ranges, text })107    }108    return coverage109  }110}...

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._client.send('Page.enable');6  await page._client.on('Page.javascriptDialogOpening', async (dialog) => {7    console.log('Dialog message: ', dialog.message);8    await dialog.accept();9  });10  await page.evaluate(() => alert('1'));11  await page.evaluate(() => confirm('2'));12  await page.evaluate(() => prompt('3', 4));13  await browser.close();14})();15await page._client.on('Page.javascriptDialogOpening', async (dialog) => {16  console.log('Dialog message: ', dialog.message);17  await dialog.dismiss();18});19await page._client.on('Page.javascriptDialogOpening', async (dialog) => {20  console.log('Dialog message: ', dialog.message);21  console.log('Dialog type: ', dialog.type);22  console.log('Dialog default value: ', dialog.defaultValue);23});24await page._client.on('Page.javascriptDialogOpening', async (dialog) => {25  console.log('Dialog type: ', dialog.type);26  console.log('Dialog default value: ', dialog.defaultValue);27});

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4  const browser = await puppeteer.launch();5  const page = await browser.newPage();6  await page._client.send('Debugger.enable');7  await page._client.send('Debugger.setSkipAllPauses', {skip: true});8  await page._client.on('Debugger.scriptParsed', async (event) => {9    const script = await page._client.send('Debugger.getScriptSource', {10    });11    fs.writeFileSync('script.js', script.scriptSource);12  });13})();

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