Javascript - how to start forEach loop at some index

Question

I have an array with alot of items, and I am creating a list of them. I was thinking of paginating the list. I wonder how can I start a forEach or for

Answer 1

Unfortunately Array#forEach iterates over every element in the given array, but you could apply a simple condition to determine to which elements (with specified index) apply the given function.

i > 3 ? someFn(item) : null;
^ if index more than 3 - call the function

var arr = [1,2,3,4,5,6,7];

function someFn(elem){
  console.log(elem);
}

arr.forEach(function(item, i) {
  return i > 3 ? someFn(item) : null;
})