JAVASCRIPT

Iterate Through an Array with a For Loop

var arr = [10, 9, 8, 7, 6];
for (var i = 0; i < arr.length; i++) {
   console.log(arr[i]);
}

create a loop that runs through each item in an array

Create a loop that runs through each item in the "fruits" array.

var fruits = ['Apple', 'Banana', 'Orange']

for(x of fruits){
	console.log(x);
}

Iterating or loop through the elements of an array is with a for loop (for):

var keys = Object.keys(o);   // Get an array of property names for object o
var values = []              // Store matching property values in this array
for(var i = 0; i < keys.length; i++) {  // For each index in the array
    var key = keys[i];                  // Get the key at that index
    values[i] = o[key];                 // Store the value in the values array
}