JS Bin[Loops: While, for, for-in]// source https://jsbin.com/bexagem

jsbin.bexagem.js

//Loops//

/* Loops are built-in features of JavaScript that allow 
* us to execute a block of code as many times as needed */

//for Loops//

//There are 3 parts to a for loop.//
//startng point //
// ending point //
//how much to increase or decrease by//

var arr = ['1','2','3','4','5','6','7'];

  for(var i = 0; i < arr.length; i++ ) {
    console.log(arr[i]);
}
 //prints '1','2','3'...//

//Backwards//

  for(var i = arr.length - 1; i > -1; i--) {
    console.log(arr[i]);
}
// prints '7','6','5'...//

  for(var i = 1; i <= 10; i++ ) {
    console.log(i);
}
//prints 1-10//


  for(var i = 10; i >= 0; i--) {
    console.log(i);
}
// prints 10-0//

//for in loops//

var obj = {oldestName: "Christian Sky",
          babyName: "Harley Quinn",
          bonusName: "Tymia Nikol",
          momName: "Nicole",
          dadName: "Quentin",};
for(var names in obj){
  console.log(obj[names]); //prints values//
  
}
for(var key in obj){
  console.log(key); //prints keys//
  
function objReverse(object) {
  var cache = [];
  for(var key in object) {
   cache.push(object[key]);
  }
   var cache = cache.reverse();
   for(var i = 0; i < cache.length; i++){
    console.log(cache[i]);
  }
  
}
}
 objReverse(obj); 

  
  //while loops//
var i = 1;
while (i <= 25){
  console.log(i);
  i++;
} /// counts to 25