how to run through array of numbers in javascript code example

Example 1: iterate through list javascript

const array = ["hello", "world"];

for (item of array) {
	//DO THIS
}

Example 2: iterate through array javascript

var myStringArray = ["Hello","World"];
var arrayLength = myStringArray.length;
for (var i = 0; i < arrayLength; i++) {
    console.log(myStringArray[i]);
    //Do something
}