@tetcoin/util/polyfill/fill.js

A collection of useful utilities for @tetcoin

"use strict";

// Copyright 2017-2019 @polkadot/util authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
if (!Array.prototype.fill) {
  Array.prototype.fill = function fill(value) {
    let start = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
    let end = arguments.length > 2 ? arguments[2] : undefined;

    // Steps 1-2.
    if (!this) {
      throw new TypeError('this is null or not defined');
    }

    const A = Object(this); // Steps 3-5.

    const len = A.length >>> 0; // Steps 6-7.

    const relativeStart = start >> 0; // Step 8.

    let k = relativeStart < 0 ? Math.max(len + relativeStart, 0) : Math.min(relativeStart, len); // Steps 9-10.

    const relativeEnd = end === undefined ? len : end >> 0; // Step 11.

    const final = relativeEnd < 0 ? Math.max(len + relativeEnd, 0) : Math.min(relativeEnd, len); // Step 12.

    while (k < final) {
      A[k] = value;
      k++;
    } // Step 13.


    return A;
  };
}

if (!Uint8Array.prototype.fill) {
  // @ts-ignore
  Uint8Array.prototype.fill = Array.prototype.fill;
}