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best is also the best of the best
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| var max = function (a, b) { | |
| return (a > b ? a : b); | |
| }; | |
| var min = function (a, b) { | |
| return (a > b ? b : a); | |
| }; | |
| var best = function (fun, array) { | |
| if (!array.reduce) return array; | |
| return array.reduce(function (a, b) { | |
| return fun(best(fun, a), best(fun, b)); | |
| }); | |
| }; | |
| var equals = function (a, b) { | |
| var equal = (a === b); | |
| console.log(a, b, equal); | |
| return equal; | |
| }; | |
| equals('z', best(max, ['a','b','z','c'])); | |
| equals( 6, best(max, [6])); | |
| equals( 6, best(max, 6)); | |
| equals( 4, best(max, [1,2,3,4,1])); | |
| equals( 8, best(max, [[1,2,3,4,1],[1,2,3,8,1],[1,2,3,4,1],[1,2,3,4,1],[1,2,3,4,1]])); | |
| equals( 12, best(max, [[1,2,3,4,1],[1,[1,12,3,4,1],3,8,1],[1,2,3,4,1],[1,2,3,4,1],[1,2,3,4,1]])); | |
| equals( -2, best(max, [-5,-2,-3])); | |
| equals( 20, best(max, [[20,2,3,4,1],[1,[1,12,3,4,1],3,8,1],[1,2,3,4,1],[1,2,3,4,1],[1,2,3,4,1]])); | |
| equals('a', best(min, ['a','b','z','c'])); | |
| equals( 6, best(min, [6])); | |
| equals( 6, best(min, 6)); | |
| equals( 1, best(min, [1,2,3,4,1])); | |
| equals( 1, best(min, [[1,2,3,4,1],[1,2,3,8,1],[1,2,3,4,1],[1,2,3,4,1],[1,2,3,4,1]])); | |
| equals( 0, best(min, [[1,2,3,4,1],[1,[1,12,3,0,4,1],3,8,1],[1,2,3,4,1],[1,2,3,4,1],[1,2,3,4,1]])); | |
| equals( -5, best(min, [-5,-2,-3])); | |
| equals( -1, best(min, [[20,2,3,4,-1],[1,[1,12,3,4,1],3,8,1],[1,2,3,4,-1],[1,2,3,4,1],[1,2,3,4,1]])); |
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