js loop through index code example

Example 1: javascript loop through array

var colors = ["red","blue","green"];
colors.forEach(function(color) {
  console.log(color);
});

Example 2: javascript loop through array

const myArray = ['foo', 'bar'];

myArray.forEach(x => console.log(x));

//or

for(let i = 0; i < myArray.length; i++) {
  console.log(myArray[i]);
}

Example 3: javascript best way to loop through array

var len = arr.length;
while (len--) {
    // blah blah
}