Function entries

entries<E>(array: readonly E[]): ArrayIterator<readonly [Uint32, E]>

Returns an iterator of [index, value] pairs for an array.

Type Parameters

E

Parameters

array: readonly E[]

Returns ArrayIterator<readonly [Uint32, E]>

Example

const tags = ['alpha', 'beta', 'gamma'] as const;

const entryList = Array.from(
  Arr.entries(tags),
  ([index, tag]) => [Number(index), tag] as const,
);

assert.deepStrictEqual(
  entryList,
  Array.from([
    [0, 'alpha'],
    [1, 'beta'],
    [2, 'gamma'],
  ]),
);