Arrays.findIndices()

added in 0.5.0 • last revisions

Syntax

Overload 1

function findIndices<T>(array: T[], predicate: (object: T) => boolean): number[]

Returns the indices for all elements that match the predicate. This function is parallel to Array.prototype.findIndex(), but whereas findIndex() only returns the first matching index, this function returns all of them.

Parameters
`array`	The array to filter.
`predicate`	A predicate that returns `true` if the element’s index should be included in the array.

Overload 2

function findIndices<T>(array: T[], object: T): number[]

Returns the indices for all elements equal to object. This function is parallel to Array.prototype.indexOf(), but whereas indexOf() only returns the first matching index, this function returns all of them.

Parameters
`array`	The array to filter.
`object`	An object of the array’s type that may or may not be included in the array itself.

Example

import { Arrays } from 'potence';

const array = [0, 1, 2, 2, 4, 8, 10, 12];

Arrays.findIndices(array, 2);  // -> [2, 3]
Arrays.findIndices(array, value => value % 4 === 0);
// -> [4, 5, 7]