nerdpruitt

// taken from http://www.dreamincode.net/code/snippet154.htm
//
// Find the weaknesses, and clean up the code.
// Find at least 3 things you can make better!
//
// Test numbers (return true):
// 4111111111111111
// 378282246310005
// 5555555555554444

nerdpruitt

Number.prototype.times = function(string){
  var result = '', times = this;
  while(times--) {
      result += string;
  }
  return result;
}
 
document.write((4).times('test'));

nerdpruitt

// Exercise 2 - Closures
// Wrap the following code in a closure and export only the "countdown" function.

// Code
var countdown = (function(){
     var index;

     function log(){
       console.log(index);
     }

nerdpruitt

function logCar(obj, objName) {
  var result = "";
  // Object.keys(obj).length
  for (var i in obj) {
    if (obj.hasOwnProperty(i)) {
      result += obj[i] + " ";
    }
  }
  console.log("My car is a " + result);
}

nerdpruitt

var mercedes = ({ color: 'red', make: 'Mercedes' });
var ferrari = ({ color: 'red', make: 'Ferrari' });

function logCar(car){
    return "I'm a " + car.color + " " + car.make;
}

logCar(mercedes);
logCar(ferrari);

nerdpruitt

function Car(color,make) {
  this.color = color;
  this.make = make;
  this.log = function(){
    console.log("My car is a " + this.color + " " + this.make + ".");
  };
}

(new Car('blue','BMW')).log();
(new Car('green','Ferrari')).log();

nerdpruitt

Function.prototype.cached = function(){
  // reference original function and create cache
  var self = this, cache = {};
  return function(arg){
    // is this argument already in the cache?
    if(arg in cache) return cache[arg];
    // if not add it
    return cache[arg] = self(arg);
  }
}

nerdpruitt

// A tracing version:

Function.prototype.cached = function(){
  var self = this, cache = {};
  return function(arg){
    if(arg in cache) {
      console.log('Cache hit for '+arg);
      return cache[arg];
    } else {
      console.log('Cache miss for '+arg);

nerdpruitt

// 1. Write a class to support the following code:
function Person(name){
    this.name = name;
}
var thomas = new Person('Thomas');
var amy = new Person('Amy');

thomas.name // --> "Thomas"

// 2. Add a getName() method to all Person objects, that outputs

nerdpruitt

<div class="tooltip">
    <span class="tooltip__icon"></span>
    
    <h2 class="tooltip__heading">This is the heading</h2>
    <p class="tooltip__text">This is some body text that can get kinda long sometimes.</p>
    
    <div class="tooltip__meta">Created today</div>  
</div>
<br><br>
<div class="tooltip--below">