Created
August 12, 2014 22:17
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functional.goooooal.js
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| // this a lazy evaluation of the delayed value | |
| // If the delayed value is delayed (i.e. a function), then return a function that will resolve eventually | |
| // If not, then resolve immediately and prefix | |
| function resolve(prefix, delayed_value) { | |
| if (typeof delayed_value === 'function') | |
| return function (a) { return resolve(prefix, delayed_value(a)) } | |
| else | |
| return prefix + delayed_value | |
| } | |
| // If passed a value, return it | |
| // otherwise return a recursive lazy evaluation prefixing 'o' | |
| function oooos(a) { | |
| if (a) | |
| return a | |
| else | |
| return resolve('o', oooos) | |
| } | |
| // return an evaluated lazy evaluation of `oooos` prefixed with 'g' | |
| function g(a) { | |
| return resolve('g', oooos)(a) | |
| } |
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| function r(p,f) { return f.bind ? function (a) { return r(p,f(a)) } : p+f } | |
| function z(a) { return a ? a : r('o',z) } | |
| function g(a) { return r('g',z)(a) } |
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| > g('al') | |
| 'gal' | |
| > g()('al') | |
| 'goal' | |
| > g()()()()('al') | |
| 'gooooal' |
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