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ichpuchtli/flatMap.ts

Forked from samgiles/flatMap.js
Last active February 22, 2016 13:19
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Javascript flatMap implementation
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flatMap.ts
// [B](f: (A) ⇒ [B]): [B] ; Although the types in the arrays aren't strict (:
function flatMap<T, U>(array: T[], mapFunc: (x: T) => U[]) : U[] {
return array.reduce((cumulus: U[], next: T) => [...mapFunc(next), ...cumulus], <U[]> []);
}
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