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January 9, 2018 06:54
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flatMap/map for JS Iterable(eg. Array, String)
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| const flatMap = (f, as) => { | |
| const result = []; | |
| for (const a of as) { | |
| result.push(...f(a)); | |
| } | |
| return result; | |
| } | |
| const map = (f, as) => { | |
| const result = []; | |
| for (const a of as) { | |
| result.push(f(a)); | |
| } | |
| return result; | |
| } |
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