addyosmani

const puppeteer = require('puppeteer');

const Good3G = {
  'offline': false,
  'downloadThroughput': 1.5 * 1024 * 1024 / 8,
  'uploadThroughput': 750 * 1024 / 8,
  'latency': 40
};

const phone = puppeteer.KnownDevices['Nexus 5X'];

andrewsantarin

react-intl-tel-input

These type definitions will help you work with react-intl-tel-input in TypeScript while this library doesn't have official support for it.

Follow the development of baked-in types here: patw0929/react-intl-tel-input#346

---

Table of Contents

• Versions Supported
• Live Example
• How You Can Use This

Danziger

import React, { useEffect, useRef } from 'react';

/**
 * Use setInterval with Hooks in a declarative way.
 *
 * @see https://stackoverflow.com/a/59274004/3723993
 * @see https://overreacted.io/making-setinterval-declarative-with-react-hooks/
 */
export function useInterval(
  callback: React.EffectCallback,

Damovisa

Core Knowledge:

• Microsoft's DevOps Definition - What Is DevOps
• The Three Ways
• The Five Ideals

Books:

• The Phoenix Project - Gene Kim et. al.
• The Unicorn Project - Gene Kim
• The DevOps Handbook - Gene Kim et. al.
• Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation

paulirish

// works great on about:dino

// 1. save this file to your snippets.
// 2. load about:dino
// 3. evaluate the snippet
// 4. hit up arrow to trigger the game.
// 5. profit

(function() {
  perfnow = performance.now;

addyosmani

<img data-src="unicorn.jpg" loading="lazy" alt=".." class="lazyload"/>

<script>
// Select all images with the class "lazyload"
const images = document.querySelectorAll("img.lazyload");
// Check if the browser supports the "loading" attribute
if ('loading' in HTMLImageElement.prototype) {
  // If so, we'll update all <img src> to point to the data-src instead
  images.forEach(img => {
    img.src = img.dataset.src;

iamandrewluca

• Error Tracking https://sentry.io
• Error Tracking https://logrocket.com
• Localisation https://crowdin.com
• Localisation https://poeditor.com
• Auth https://auth0.com
• Continuous Integration https://travis-ci.org/
• E2E Testing https://www.cypress.io
• Cross Browser Testing https://www.browserstack.com
• Code Coverage https://codecov.io
• Serverless https://zeit.co/

ChaseFlorell

Set-Alias less "C:\Program Files\Git\usr\bin\less.exe"

function f($text, $files="*.*")
{
  findstr /spin $text $files | less
}

fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

peterpham

# list all listening ports
sudo lsof -i -P | grep -i "listen"

# list all processes using specific port - this will list all pid that using port 8080
lsof -i :8080 | grep "LISTEN"

# tell which application is running on specfic pid (for example,  1237)
ps -ef | grep 12337

# kill processes using port 8888