/*
 * LOOPS: WHILE, FOR< FOR-IN:
 *
 * 0. Loops allow us to iterate through all of the elements in our collection.
 * Loops allow up to iterate a block of code as often as needed. A standard for loop
 * has 3 parts: the initialized starting position, the point in which we want the loop to
 * stop, and the incrementor. We have to declare a variable for the index, which is usually
 * set to "i". For objects, we use a for-in loop, because the "in" aspect
 * allows us to pull the keys from an object. Lastly, a while loop will continue to execute
 * a block of code "while" the condition remains true.
 */

//Looping over an Array, forwards and backwards:
function printArrayValues(array) {
  for(var i = 0; i < array.length; i++) {
    console.log(array[i]);
  }
}

function printArrayValuesInReverse(array) {
  for(var i = array.length -1 ; i > -1; i--) {
    console.log(array[i]);
  }
}
//Looping over an Object, forwards and backwards: ( hint: keys = Object.keys(myObject); )
function printObjectValues(object) {
  for(var prop in object) {
    console.log(object[prop]);
  }
}