rhodecode/public/js/src/rhodecode/utils/array.js

// # Copyright (C) 2010-2016  RhodeCode GmbH
// #
// # This program is free software: you can redistribute it and/or modify
// # it under the terms of the GNU Affero General Public License, version 3
// # (only), as published by the Free Software Foundation.
// #
// # This program is distributed in the hope that it will be useful,
// # but WITHOUT ANY WARRANTY; without even the implied warranty of
// # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// # GNU General Public License for more details.
// #
// # You should have received a copy of the GNU Affero General Public License
// # along with this program.  If not, see <http://www.gnu.org/licenses/>.
// #
// # This program is dual-licensed. If you wish to learn more about the
// # RhodeCode Enterprise Edition, including its added features, Support services,
// # and proprietary license terms, please see https://rhodecode.com/licenses/

if (!Array.prototype.indexOf) {
  Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
    "use strict";
    if (this === null) {
      throw new TypeError();
    }
    var t = Object(this);
    var len = t.length >>> 0;
    if (len === 0) {
      return -1;
    }
    var n = 0;
    if (arguments.length > 0) {
      n = Number(arguments[1]);
      if (n !== n) { // shortcut for verifying if it's NaN
        n = 0;
      } else if (n !== 0 && n !== Infinity && n !== -Infinity) {
        n = (n > 0 || -1) * Math.floor(Math.abs(n));
      }
    }
    if (n >= len) {
      return -1;
    }
    var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
    for (; k < len; k++) {
      if (k in t && t[k] === searchElement) {
        return k;
      }
    }
    return -1;
  };
}

if (!Array.prototype.filter) {
  Array.prototype.filter = function(fun /*, thisp*/) {
    'use strict';

    if (this === null) {
      throw new TypeError();
    }

    var t = Object(this),
        len = t.length >>> 0,
        res, thisp, i, val;
    if (typeof fun !== 'function') {
      throw new TypeError();
    }

    res = [];
    thisp = arguments[1];
    for (i = 0; i < len; i++) {
      if (i in t) {
        val = t[i]; // in case fun mutates this
        if (fun.call(thisp, val, i, t)) {
          res.push(val);
        }
      }
    }

    return res;
  };
}