blossom/application/text/array.js

Modern, Cross-Platform Application Framework

/*!
 * JavaScript Core Array v0.39
 *
 * Licensed under the new BSD License.
 * Copyright 2008-2009, Bram Stein
 * All rights reserved.
 */

sc_require('text/object');

(function () {
  Object.extend(Array.prototype, {
    isEmpty: function () {
      return this.length < 1;
    },
    append: function () {
      var i = 0, len = arguments.length;
      // interestingly enough, push() beats both
      // concat()---which was expected---and splice()
      for (; i < len; i += 1) {
        this.push.apply(this, arguments[i]);
      }
      return this;
    },
    peek: function () {
      return this[this.length - 1];
    },
    contains: function (v) {
      return this.indexOf(v) !== -1;
    }
  });

  ['reduce', 'reduceRight', 'filter', 'map', 'forEach', 'some', 'every', 'indexOf', 'lastIndexOf', 'isEmpty', 'equals', 'contains', 'append', 'peek', 'join', 'sort', 'reverse', 'push', 'pop', 'shift', 'unshift', 'splice', 'concat', 'slice'].forEach(function (func) {
    if (!(func in Array) && func in Array.prototype) {
      Array[func] = function (obj) {
        return this.prototype[func].apply(obj, Array.prototype.slice.call(arguments, 1));
      };
    }
  });
})();