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  1. function stdout(arg) {
  2.     if    (this.console) this.console.log(arg)
  3.     else if (this.alert) this.alert(arg)
  4.     else if (this.print) this.print(arg)
  5. } 
  6.  
  7.  
  8. //////////////////////////////////////////////////////////
  9.  
  10.  
  11. Array.prototype.toStreamUsing = function (methods) {
  12.  
  13.     var array = this, funcs = [], args = [], neo_methods = {}
  14.  
  15.     for (key in methods) {
  16.         (function (func) {
  17.             neo_methods[key] = function () {
  18.                 funcs.push(func)
  19.                 args.push(Array.prototype.slice.apply(arguments))
  20.                 return neo_methods
  21.             }
  22.         })(methods[key])
  23.     }
  24.  
  25.     neo_methods.toArray = function () {
  26.         var neo_array = new Array(array.length)
  27.         for (var i = 0; i < array.length; ++i) {
  28.             var v = array[i]
  29.             for (var j = 0; j < args.length; ++j) {
  30.                 v = funcs[j].apply(null, [v].concat(args[j]))
  31.             }
  32.             neo_array[i] = v
  33.         }
  34.         return neo_array
  35.     }
  36.  
  37.     return neo_methods
  38.  
  39. }
  40.  
  41.  
  42. //////////////////////////////////////////////////////////
  43.  
  44.  
  45. arr = [1,2,3,4,5]
  46.  
  47. methods = {
  48.     allPlus : function (n, m) {return n + m},
  49.     allMinus: function (n, m) {return n - m}
  50. }
  51.  
  52.  
  53. //////////////////////////////////////////////////////////
  54.  
  55.  
  56. neo_arr = arr.toStreamUsing(methods).allPlus(5).allMinus(3).toArray()
  57. stdout(neo_arr)  // 3,4,5,6,7
  58.  
  59.  
  60. stream = arr.toStreamUsing(methods)
  61. stream = stream.allPlus(5)
  62. stream = stream.allMinus(3)
  63. stream.toArray()
  64. stdout(neo_arr)  // 3,4,5,6,7
  65.  
Success #stdin #stdout 0.01s 4984KB
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Standard input is empty
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3,4,5,6,7
3,4,5,6,7
https://ideone.com/fMZJM7
language:
JavaScript (SMonkey 60.2.3)
created:
10 years ago
visibility:
secret

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