[Sommaire] [Imprimer]

   1  var $A = Array.from = function(iterable) {
   2    if (!iterable) return [];
   3    if (iterable.toArray) {
   4      return iterable.toArray();
   5    } else {
   6      var results = [];
   7      for (var i = 0; i < iterable.length; i++)
   8        results.push(iterable[i]);
   9      return results;
  10    }
  11  }
  12  
  13  Object.extend(Array.prototype, Enumerable);
  14  
  15  if (!Array.prototype._reverse)
  16    Array.prototype._reverse = Array.prototype.reverse;
  17  
  18  Object.extend(Array.prototype, {
  19    _each: function(iterator) {
  20      for (var i = 0; i < this.length; i++)
  21        iterator(this[i]);
  22    },
  23    
  24    clear: function() {
  25      this.length = 0;
  26      return this;
  27    },
  28    
  29    first: function() {
  30      return this[0];
  31    },
  32    
  33    last: function() {
  34      return this[this.length - 1];
  35    },
  36    
  37    compact: function() {
  38      return this.select(function(value) {
  39        return value != undefined || value != null;
  40      });
  41    },
  42    
  43    flatten: function() {
  44      return this.inject([], function(array, value) {
  45        return array.concat(value && value.constructor == Array ?
  46          value.flatten() : [value]);
  47      });
  48    },
  49    
  50    without: function() {
  51      var values = $A(arguments);
  52      return this.select(function(value) {
  53        return !values.include(value);
  54      });
  55    },
  56    
  57    indexOf: function(object) {
  58      for (var i = 0; i < this.length; i++)
  59        if (this[i] == object) return i;
  60      return -1;
  61    },
  62    
  63    reverse: function(inline) {
  64      return (inline !== false ? this : this.toArray())._reverse();
  65    },
  66    
  67    inspect: function() {
  68      return '[' + this.map(Object.inspect).join(', ') + ']';
  69    }
  70  });