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