45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
// Solution by Ethan Ruszanowski
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const { chromium } = require("playwright");
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async function sortHackerNewsArticles() {
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// launch browser
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const browser = await chromium.launch({ headless: false });
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const context = await browser.newContext();
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const page = await context.newPage();
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// go to Hacker News
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await page.goto("https://news.ycombinator.com/newest");
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// instantiate array for all date objects
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let datestamps = []
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// loop through process per page
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for (var pageview = 0; pageview <= 3; pageview++) {
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// locate each article's age span
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let datespans = await page.locator('.age').all();
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// iterate through date spans to get timestamps
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for (row = 0; row < datespans.length; row++) {
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// turn timestamp strings into date objects and push to array
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datestamps.push(new Date(await datespans[row].getAttribute('title')));
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}
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// click the next button as needed
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await page.getByRole('link', { name: 'More', exact: true }).click();
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}
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// drop extra articles from last page grab
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datestamps = datestamps.slice(0, 100);
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// report results
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if (datestamps === datestamps.sort()) {
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console.log("Success! The first 100 articles are correctly sorted by posting time.")
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} else {
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console.log("Failure… The first 100 articles are not correctly sorted by posting time.")
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}
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}
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(async () => {
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await sortHackerNewsArticles();
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})();
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