take() function

iterable から最初のl個の値を取得した Iterable/AsyncIterable を返します。

Signature:

declare function take<A>(l: number, iterable: Iterable<A>): IterableIterator<A>;

Example

const iter = take(2, [0, 1, 2, 3, 4, 5, 6]);
iter.next(); // {done:false, value: 0}
iter.next(); // {done:false, value: 1}
iter.next(); // {done:true, value: undefined}

// with pipe
pipe([0, 1, 2, 3, 4, 5, 6], take(2), toArray); // [0, 1]

await pipe(Promise.resolve([0, 1, 2, 3, 4, 5, 6]), take(2), toArray); // [0, 1]

// with toAsync
await pipe(
  [
    Promise.resolve(0),
    Promise.resolve(1),
    Promise.resolve(2),
    Promise.resolve(3),
    Promise.resolve(4),
    Promise.resolve(5),
    Promise.resolve(6),
  ],
  toAsync,
  take(2),
  toArray,
); // [0, 1]

Try It

see pipe, toAsync, toArray

Open Source Code