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//Open the debugger console, type the following:
 
var _alert = window.alert;
window.alert = function () { debugger; _alert.apply(this, arguments); }
 
//Do not reload the page!
//When the alert will be called, it breaks in the debugger and you have access to the call stack.

//Credits to @ArnaudBuchholz

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//Class
function MyClass() {
    this.ownMember = 123;
}

//Prototype declaration
MyClass.prototype = {
    prototypeMember: 456
};

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(function () {
  'use strict';

  var proto = String.prototype;

  if (undefined === proto.startsWith) {
    /**
     * Returns true if the string starts with the given one
     *
     * @param {String} str

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***

less config:

...
require('@easy-webpack/config-less')
      ({ filename: 'styles.css', allChunks: false, sourceMap: false }),
...

***

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const arrayOfObjects = [
  {name: 'A', level: 5},
  {name: 'B', level: 10},
  {name: 'C', level: 15},
  {name: 'D', level: 20},
  {name: 'E', level: 25},
  {name: '-', level: 0}
];

let cloneArrayA = arrayOfObjects.slice();

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// === Arrays

var [a, b] = [1, 2];
console.log(a, b);
//=> 1 2


// Use from functions, only select from pattern
var foo = () => [1, 2, 3];

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import React from "react"

export default ({ children }) =>
  <div style={{ margin: "3rem auto", maxWidth: 600 }}>
    {children}
  </div>

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Option 1

POST

{
  "command": "SET_PROCESS_THRESHOLD",
  "parameters": {
  	"processName": "New Vacation Request",
    "newTargetDurationInMillis": "NULL | 0"
 }

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#NiM - Node.js V8 --inspector Manager (NiM)
#https://chrome.google.com/webstore/detail/nodejs-v8-inspector-manag/gnhhdgbaldcilmgcpfddgdbkhjohddkj?hl=en

node --inspect-brk 01-hello.js

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OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application: