JasonDeving

let numbers = [4,6,3,8];

let max = Math.max(...numbers);

console.log(max);

JasonDeving

# Object oriented programming

```js
var answer = {
	get: function fn1() {
		return this.val;
	},
	val: 42
};
```

JasonDeving

var counter = (function() {
  var i = 0;
  
  return {
  	get: function() {
  		return i;
  	},
  	set: function(val) {
  		i = val;
  	},

JasonDeving

Write a function, funcCaller, that takes a func (a function) and an arg (any data type). The function returns the func called with arg(as an argument).

var funcCaller = function(func, arg) {
	return func(arg);
}
Write a function, firstVal, that takes an array, arr, and a function, func, and calls func with the first index of the arr, the index # and the whole array.
var firstVal = function(arr, func){
	return func(arr[0], 0, arr);
}
Change firstVal to work not only with arrays but also objects. Since objects are not ordered, you can use any key-value pair on the object.

JasonDeving

var Toaster = function(){
    //some private methods and properties
    var maxTemp = 500,
    temp: 0;
    return {
      //some public methods and properties, etc
      setTemp: function(newTemp) {
      	if (newTemp > maxTemp) {
      		console.log("That temp is too high!");
      	} else {

JasonDeving

var increment = function(n){ return n + 1; };
var square = function(n){ return n*n; };
var doMath = function(n, func){ return func(n); };

var squareAnswer = doMath(5, square);
var plusOne = doMath(4, increment);
console.log(squareAnswer);
console.log(plusOne);

JasonDeving

var ifElse = function(condition, isTrue, isFalse){
  if(condition){
    isTrue();
  } else {
    isFalse();
  }
};

var logTrue = function(){ console.log(true); };
var logFalse = function(){ console.log(false); };

JasonDeving

var Module = function(){
  var privateProperty = 'foo';
  function privateMethod(args){
    // do something
  };
  
  return {
    publicProperty: "",
    publicMethod: function(args){
      // do something

JasonDeving

var nonsense = function(string){
  var blab = function(){
   alert(string);
  };
  setTimeout(blab, 2000);
}
nonsense('blah blah');

JasonDeving

function counter() {
  var n = 0;
  return {
    count: function() {return ++n; },
    reset: function() {n = 0;}
  }
};

var myCounter = counter(), num;
myCounter.count();