core-js/internals/array-with.js

'use strict';
var lengthOfArrayLike = require('../internals/length-of-array-like');
var toIntegerOrInfinity = require('../internals/to-integer-or-infinity');

var $RangeError = RangeError;

// https://tc39.es/proposal-change-array-by-copy/#sec-array.prototype.with
// https://tc39.es/proposal-change-array-by-copy/#sec-%typedarray%.prototype.with
module.exports = function (O, C, index, value) {
  var len = lengthOfArrayLike(O);
  var relativeIndex = toIntegerOrInfinity(index);
  var actualIndex = relativeIndex < 0 ? len + relativeIndex : relativeIndex;
  if (actualIndex >= len || actualIndex < 0) throw new $RangeError('Incorrect index');
  var A = new C(len);
  var k = 0;
  for (; k < len; k++) A[k] = k === actualIndex ? value : O[k];
  return A;
};