what does the number 1 do in this code

Question

I understand (I think) that this JavaScript splits on the hash tag, but what would the 1 represent?

window.location.hash.split("#")[1];

Answer 1

The split() method is used to split a string into an array of substrings, and returns the new array. Thus, the [1] represents the second element of the split array window.location.hash.split("#")[1];

JavaScript Split Function