Sam Zeng samzeng
samzeng
/ perf.js
Created
April 25, 2019 09:15
— forked from scurker/perf.js
Capturing Page Load Metrics with Puppeteer
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| const puppeteer = require('puppeteer'); | |
| (async function() { | |
| const browser = await puppeteer.launch({ devtools: true }); | |
| const page = await browser.newPage(); | |
| // Login | |
| await page.goto('http://localhost:8080'); | |
| await page.type('#login', 'username'); |
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| .page--gray { | |
| filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1); | |
| -webkit-filter: grayscale(100%); | |
| -moz-filter: grayscale(100%); | |
| -ms-filter: grayscale(100%); | |
| -o-filter: grayscale(100%); | |
| filter: grayscale(100%); | |
| filter: gray; | |
| } |
samzeng
/ CSS Layout Debugger.js
Created
March 28, 2023 06:29
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| [].forEach.call(document.querySelectorAll("*"),function(a){a.style.outline="1px solid #"+(~~(Math.random()*(1<<24))).toString(16)}) |
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