aaronfrost

function Aaron(){
    this.favoriteSaying = "I love Google!";
    //this.saySomething = function(){
    //    console.log(this.favoriteSaying);
    //}
    this.saySomething = () => {
    	console.log(this.favoriteSaying);
    }
}

aaronfrost

var foo = () => console.log("foo");

// similar to

var bar = function(){
    console.log('bar';
}

aaronfrost

let add = (x,y)=> x+y;
console.log(add(1,2));

//When there is only line instruction
//in the Arrow Function body, you 
//don't need the 'return' keyword 
//to return the result of the expression

aaronfrost

let add = (x,y)=> x+y;
console.log(add(1,2));
//NO BRACKETS FOR ONE LINES

let add = (x,y)=> {
    if(x && y){
        console.log(x + y);
    }
}
console.log(add(1,2));

aaronfrost

//NONE
let add = () => 0 + 0;  //0 params, parens required
//ONE PARAM
let add =  x  => x + x; //1 param, parens options
let add = (x) => x + x; 
//MULTI PARAMS
let add = (x, y) => x + y; //multi params, parens required

aaronfrost

<div id="foo">
    <div class="bar">Baz</div>
</div>

aaronfrost

//For more reading, check here: https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Scope_Cheatsheet#let


//Try running these in the Scratchpad of Mozilla Firefox
//THIS IS NOT WHAT HAPPENS, BUT WHAT YOU ARE EXPECTING
(function(){
  if(navigator){
    
    console.log(b); //if let didn't hoist, this would throw an error #THIS IS NOT WHAT ACTUALLY HAPPENS
    let b = 1;      

aaronfrost

//In your Gruntfile
grunt.registerTask('replaceURL', '...', require('./urlReplacer.js'));

//Then in urlReplacer.js
var fs, r, oldfile, newfile;
fs = require('fs');
r = new RegExp("some regex to match your url", 'g');
//read the the file and replace the text
oldfile = fs.readFileSync(__dirname + '/file-with-url-that-needs-to-be-replaced.js', 'utf8');
newfile = oldfile.replace(r, 'http://thenewurl.com');

aaronfrost

<div ng-controller="TestCtrl" >
  <div test-ctrl-move-handler="doMouseMoveEvent()" style="width:1000px;height:1000px;"></div>
</div>

aaronfrost

angular.module('app').directive('MyDirective', function(){
  
  //NEW AND IMPROVED, NOW WITH LESS WATCHING!
  return {
    restrict: 'AE',
    replace: 'true',
    templateUrl: '../../blah.html',
    scope:{
      item: '='
    },