loop value in array js code example

Example 1: iterate through list javascript

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

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

Example 2: how to iterate in array of array

var printArray = function(arr) {
    if ( typeof(arr) == "object") {
        for (var i = 0; i < arr.length; i++) {
            printArray(arr[i]);
        }
    }
    else document.write(arr);
}

printArray(parentArray);