MikeHigginbottom

//Properties defined in constructor
function Person(first, last, age, gender, interests) {
  this.name = {
    first,
    last
  };
  this.age = age;
  this.gender = gender;
  this.interests = interests;
};

MikeHigginbottom

var person = {
  name : {
    first: 'Bob',
    last: 'Smith'
  },
  age: 32,
  gender: 'male',
  interests: ['music', 'skiing'],
  greeting: function() {
    alert('Hi! I\'m ' + this.name.first + '.');

MikeHigginbottom

var myButton = document.querySelector('button');

myButton.onclick = function() {
  alert('hello');
}

MikeHigginbottom

switch (expression) {
  case choice1:
    run this code
    break;

  case choice2:
    run this code instead
    break;
    
  // include as many cases as you like

MikeHigginbottom

var mixedArray = ['foo', [3, 1, 7, 15], 23];
var num = mixedArray[1][2]; //7

mixedArray.push(213);  //['foo', [3, 1, 7, 15], 23, 213]
mixedArray.pop();  //['foo', [3, 1, 7, 15], 23]
mixedArray.unshift(456);  //[456, 'foo', [3, 1, 7, 15], 23]
mixedArray.shift();  //['foo', [3, 1, 7, 15], 23]

MikeHigginbottom

var myString = "MyString";
var len = myString.length; //8
var mine = myString.indexOf('My'); //0
var yours = myString.indexOf('Your'); //-1
var string = myString.slice(2); //String
var str = myString.slice(2,5); //Str
myString.replace('My', 'Your');
var towns = 'Manchester,London,Liverpool,Birmingham,Leeds,Carlisle';
var townsArray = towns.split(',');
var townsCopy = townsArray.join(',');

MikeHigginbottom

var myDate = '19' + '67';
typeof myDate; //Number

var myString = '123';
var myNum = Number(myString);
typeof myNum; //Number

var myNum = 123;
var myString = myNum.toString();
typeof myString; //String

MikeHigginbottom

submitButton.disabled = true;
textEntryField.focus();

MikeHigginbottom

element.style.backgroundColor = 'white';

MikeHigginbottom

function createParagraph() {
  var para = document.createElement('p');
  para.textContent = 'You clicked the button!';
  document.body.appendChild(para);
  document.body.removeChild(para);
}