Created
April 13, 2012 17:10
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abusing _ scala in javascript
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| <script> | |
| function next(a) { | |
| return a + 1; | |
| } | |
| function map(els, f) { | |
| var current = []; | |
| for(var i in els) { | |
| var el = els[i]; | |
| current.push(f(el)); | |
| } | |
| return current; | |
| } | |
| function inject(els, init, f) { | |
| var current = init; | |
| for(var i in els) { | |
| var el = els[i]; | |
| current = f(current, el); | |
| } | |
| return current; | |
| } | |
| var _ = { | |
| concat : function(parameter) { | |
| var calculate = function(a, b) { | |
| return a + evaluate(parameter, b); | |
| }; | |
| var evaluate = function(value, b) { | |
| if(value == _) { | |
| return b; | |
| } else { | |
| return value; | |
| } | |
| }; | |
| return calculate; | |
| } | |
| }; | |
| var x = ["banana", "orange", "lemon"]; | |
| var result = map(x, ":::", _.concat(_)); | |
| console.log(result); | |
| </script> |
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