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jremmen/multimap_multireduce.js

Last active August 29, 2015 14:02
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js: multimap and multireduce array methods
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multimap_multireduce.js
Array.prototype.multimap = function(f) {
return this.length == 0 ? [] : [(this[0] instanceof Array ? this[0].multimap(f) : f(this[0]))].concat(this.slice(1).multimap(f));
}
Array.prototype.multireduce = function(f, z) {
return this.length == 0 ? z : f((this[0] instanceof Array ? this[0].multireduce(f, z) : this[0]), this.slice(1).multireduce(f, z));
}
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