avajs/ava : 🚀 Testing can be a drag. AVA helps you get it done.

A concurrent test runner from the Andromeda galaxy. If I was to stray from Jasmine then it could only be for a project Sindre Sorhus is working on :) The screenshots on the project site promised extensive assertion failure output with clean stack traces and built-in Promise, async/await, Observable and React component support. So I tried it out and yup, AVA delivered.

Get Started

# Install
npm init ava

# Run tests
npx ava --watch --verbose

Not nearly as confusing as it is in JavaScript.

using System.Text.RegularExpressions;

bool mach = Regex.IsMatch("input", @"\w+", RegexOptions.None);
Match match = Regex.Match("input", @"\w+");
IReadOnlyList<Match> matches = Regex.Matches("input", @"\w+");
string result = Regex.Replace("input", @"(\w+)", "$1");

vuejs/vue : Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

Why Vue

• 100k+ ⭐: So many people can’t be wrong
• Declarative rendering with a cool, terse syntax
• Low learning curve
• Reactive and composable view components
• Optional official vue-router and vuex (statemanagement)
• @vue/cli: Scaffold project with optional support for TypeScript, PWA, CSS Pre-processors, Linters, Tests, …
• Automatic dependency tracking
• Virtual DOM
• Supports IE9+

Moment.js is a legacy project, now in maintenance mode. In most cases, you should choose a different library.
See some alternatives at the end of this post.

Proceed at your own peril

Moment.js is a mutable wrapper with a fluent interface for the native JavaScript date object (property _d). Use .toDate() to convert back to a JavaScript date.

Update for Husky v9
A lot has changed in Husky since this blog post. See the 2024 update of this article instead!

Avoid pushing changes that break the build with githooks and Husky.

typicode/husky : 🐺 Git hooks made easy

Some git commands and scripts that come in handy from time to time.

A free and open source Chrome Extension that adds Github stars badges to all links on a web page.

Before: https://github.com/sindresorhus/awesome
After: sindresorhus/awesome

A cheat sheet for the regex syntax in JavaScript.

MDN RegExp Guide

TL&DR

/^$/.test(''); // boolean
'ok'.replace(/(o)(k)/g, '$2$1');
// Other replacements:
// $$ (literal), $& (all), $` (before), $' (after), $<name>

const matchG = 'aaa'.match(/a/g);
matchG == ['a', 'a', 'a'];

const matchNoG = 'str'.match(/(st)r/);
matchNoG == Object.assign(['str', 'st'], {groups: undefined, index: 0, input: 'str'});
matchNoG == /(st)r/.exec('str');