how to use for-loop in array (javascript)

Question

var arr = [23,56,87,109];
var a23 = arr[0];
var a56 = arr[1];
var a87 = arr[2];
var a109 = arr[3];

How can I do that by using "for-loop"? THanks!

Answer 1

Try the code below.

var arr = [23,56,87,109];
for (var i = 0; i < arr.length; i++) {
    alert(arr[i]);
    //Do something
}

Answer 2

I am not sure why do you want to assign it to N - separate variables.But you can use for loop like this :

 var arr = [23, 56, 87, 109]; for (var i = 0; i < arr.length; i++) { document.write(arr[i] + "<br>"); }