new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Playwright · API reference · all subjects

coverage

2 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

Coverage class overview

Coverage gathers information about parts of JavaScript and CSS that were used by the page. Coverage APIs are only supported on Chromium-based browsers. The Coverage class is available since v1.11.

Coverage example: JavaScript coverage with Istanbul report

Example code showing how to use JavaScript coverage to produce an Istanbul report for page load: ```js const { chromium } = require('playwright'); const v8toIstanbul = require('v8-to-istanbul'); (async () => { const browser = await chromium.launch(); const page = await browser.newPage(); await page.coverage.startJSCoverage(); await page.goto('https://chromium.org'); const coverage = await page.coverage.stopJSCoverage(); for (const entry of coverage) { const converter = v8toIstanbul('', 0, { source: entry.source }); await converter.load(); converter.applyCoverage(entry.functions); console.log(JSON.stringify(converter.toIstanbul())); } await browser.close(); })(); ```

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