[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  Array.prototype._reverse = Array.prototype.reverse;
  16  
  17  Object.extend(Array.prototype, {
  18    _each: function(iterator) {
  19      for (var i = 0; i < this.length; i++)
  20        iterator(this[i]);
  21    },
  22    
  23    clear: function() {
  24      this.length = 0;
  25      return this;
  26    },
  27    
  28    first: function() {
  29      return this[0];
  30    },
  31    
  32    last: function() {
  33      return this[this.length - 1];
  34    },
  35    
  36    compact: function() {
  37      return this.select(function(value) {
  38        return value != undefined || value != null;
  39      });
  40    },
  41    
  42    flatten: function() {
  43      return this.inject([], function(array, value) {
  44        return array.concat(value.constructor == Array ?
  45          value.flatten() : [value]);
  46      });
  47    },
  48    
  49    without: function() {
  50      var values = $A(arguments);
  51      return this.select(function(value) {
  52        return !values.include(value);
  53      });
  54    },
  55    
  56    indexOf: function(object) {
  57      for (var i = 0; i < this.length; i++)
  58        if (this[i] == object) return i;
  59      return -1;
  60    },
  61    
  62    reverse: function(inline) {
  63      return (inline !== false ? this : this.toArray())._reverse();
  64    },
  65    
  66    shift: function() {
  67      var result = this[0];
  68      for (var i = 0; i < this.length - 1; i++)
  69        this[i] = this[i + 1];
  70      this.length--;
  71      return result;
  72    },
  73  
  74    inspect: function() {
  75      return '[' + this.map(Object.inspect).join(', ') + ']';
  76    }
  77  });