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/**
* @license
* Copyright 2024 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
const puppeteer = require('puppeteer');
/**
* To have Puppeteer fetch a Firefox binary for you, first run:
*
* PUPPETEER_PRODUCT=firefox npm install
*
* To get additional logging about which browser binary is executed,
* run this example as:
*
* DEBUG=puppeteer:launcher NODE_PATH=../ node examples/cross-browser.js
*
* You can set a custom binary with the `executablePath` launcher option.
*/
const firefoxOptions = {
product: 'firefox',
extraPrefsFirefox: {
// Enable additional Firefox logging from its protocol implementation
// 'remote.log.level': 'Trace',
},
// Make browser logs visible
dumpio: true,
};
(async () => {
const browser = await puppeteer.launch(firefoxOptions);
const page = await browser.newPage();
console.log(await browser.version());
await page.goto('https://news.ycombinator.com/');
// Extract articles from the page.
const resultsSelector = '.titleline > a';
const links = await page.evaluate(resultsSelector => {
const anchors = Array.from(document.querySelectorAll(resultsSelector));
return anchors.map(anchor => {
const title = anchor.textContent.trim();
return `${title} - ${anchor.href}`;
});
}, resultsSelector);
console.log(links.join('\n'));
await browser.close();
})();
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