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bard/array-partition.ts

Created May 17, 2021 17:23
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array-partition.ts
const partition = <T>(array: T[], pred: (item: T) => boolean) =>
array.reduce<[T[], T[]]>(
([leftSet, rightSet], item) =>
pred(item)
? [[...leftSet, item], rightSet]
: [leftSet, [...rightSet, item]],
[[], []],
)
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