Js remove element from array without change the original

Question

I want to know if there is a way to do this without make a full copy of the array and then splice the copy.

var arr = [{id:1, name:'name'},{id:2, name:'name'},{id:3, name:'name'}];

I need to temp remove element by his index and use the array without this element, but i dont want to change the original array.

You can give me way even with lodash.

Answer 1

Array.prototype.filter will create and return a new array consisting of elements that match the predicate.

function removeByIndex(array, index) {
  return array.filter(function (el, i) {
    return index !== i;
  });
}

Even shorter with ECMAScript 6:

var removeByIndex = (array, index) => array.filter((_, i) => i !== index);