slice() function

startIndex(含む)から endIndex(含まない)までの指定された要素の Iterable/AsyncIterable を返します。

Signature:

declare function slice<T>(
  start: number,
  iterable: Iterable<T>,
): IterableIterator<T>;

Example

const iter1 = slice(1, 3, ["a", "b", "c", "d", "e"]);
iter1.next(); // {value: 'b', done: false};
iter1.next(); // {value: 'c', done: false};
iter1.next(); // {value: undefined, done: true};

const iter2 = slice(3, ["a", "b", "c", "d", "e"]);
iter2.next(); // {value: 'd', done: false};
iter2.next(); // {value: 'e', done: false};
iter2.next(); // {value: undefined, done: true};

const iter3 = slice(3, "abcde");
iter3.next(); // {value: 'd', done: false};
iter3.next(); // {value: 'e', done: false};
iter3.next(); // {value: undefined, done: true};

// with pipe
pipe([1, 2, 3, 4, 5], slice(3), toArray); // [4, 5]

pipe([1, 2, 3, 4, 5], slice(1, 3), toArray); // [2, 3]

see pipe, toArray

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