array-fill.js•760 B
'use strict';
var toObject = require('../internals/to-object');
var toAbsoluteIndex = require('../internals/to-absolute-index');
var lengthOfArrayLike = require('../internals/length-of-array-like');
// `Array.prototype.fill` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.fill
module.exports = function fill(value /* , start = 0, end = @length */) {
var O = toObject(this);
var length = lengthOfArrayLike(O);
var argumentsLength = arguments.length;
var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
var end = argumentsLength > 2 ? arguments[2] : undefined;
var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
while (endPos > index) O[index++] = value;
return O;
};