JohnAlbin

README

1. When Gatsby starts up, it will read gatsby-config.js first.
2. As you can see below, we use that file to require('ts-node').register() which registers a TypeScript evaluator that will be used when Gatsby reads all other API Javascript files. In other words, we only need to do this once in our entire codebase and not in other Gatsby files like gatsby-node.js.
3. Our gatsby-config.js re-exports all the exported variables available in gatsby-config.ts.

WesThorburn

Linux: Compile C++ to WebAssembly and JavaScript using Emscripten and CMake

Download and Install Emscripten

• My preferred installation location is /home/user
• Get the latest sdk: git clone https://github.com/emscripten-core/emsdk.git
• Enter the cloned directory: cd emsdk
• Checkout main: git checkout main
• Install the lastest sdk tools: ./emsdk install latest
• Activate the latest sdk tools: ./emsdk activate latest
• Activate path variables: source ./emsdk_env.sh

rauschma

Strings

String.prototype.*

None of the string methods modify this – they always return fresh strings.

• charAt(pos: number): string ^ES1

  Returns the character at index pos, as a string (JavaScript does not have a datatype for characters). str[i] is equivalent to str.charAt(i) and more concise (caveat: may not work on old engines).

rauschma

This content moved here: https://exploringjs.com/impatient-js/ch_arrays.html#quickref-arrays

iammerrick

import React from 'react';

const MIN_SCALE = 1;
const MAX_SCALE = 4;
const SETTLE_RANGE = 0.001;
const ADDITIONAL_LIMIT = 0.2;
const DOUBLE_TAP_THRESHOLD = 300;
const ANIMATION_SPEED = 0.04;
const RESET_ANIMATION_SPEED = 0.08;
const INITIAL_X = 0;

mxstbr

Enable tab completion for JSX with Emmet in Atom

This guide assumes you have the emmet and language-babel packages already installed in Atom

1. Open the keymap.cson file by clicking on Atom -> Keymap… in the menu bar
2. Add these lines of code to your keymap:

'atom-text-editor[data-grammar~="jsx"]:not([mini])':

srph

import React from 'react';

const DummyLink = ({onClick, children, ...props}) =>
  <a href="#" onClick={evt => {
    evt.preventDefault();
    onClick && onClick();
  }} {...props}>
    {children}
  </a>

yoavniran

The Ultimate Unit Testing Cheat-sheet

---

• Sinon Chai
• Chai
• Sinon

addyosmani

{
    "name": "my-app",
    "version": "1.0.0",
    "description": "My test app",
    "main": "src/js/index.js",
    "scripts": {
        "jshint:dist": "jshint src/js/*.js",
        "jshint": "npm run jshint:dist",
        "jscs": "jscs src/*.js",
        "browserify": "browserify -s Validating -o ./dist/js/build.js ./lib/index.js",

Veraticus

#
# A stripped-down sorin theme.
#
# Authors:
#   Sorin Ionescu <[email protected]>
#   Josh Symonds <[email protected]>
#
# Screenshots:
#   http://i.imgur.com/nBEEZ.png
#