How to access array in circular manner in JavaScript

Question

I have an array like [A,B,C,D]. I want to access that array within a for loop like as

var arr = [A,B,C,D];

var len = arr.len;
for(var i = 0;i&         


        

Answer 1

Try this:

var arr = ["A","B","C","D"];
for (var i=0, len=arr.length; i

Without mutating the array, it would be

for (var i=0, len=arr.length; i