@gmjs/array-transformers v0.0.3

Array Transformers

This library contains some utilities for transforming arrays.

Installation

npm install --save @gmjs/array-transformers

API

filterOutNullish

Filtered out null and undefined values from an array. More precisely, it returns a copy of the array with all null and undefined values removed, while leaving the original array unchanged.

The returned array will be properly typed, so that TypeScript will know that it does not contain null or undefined values.

const original: readonly (number | null | undefined)[] = [1, null, 2, undefined, 3];
const filtered = filterOutNullish(original); // typed as 'readonly number[]'
console.log(filtered);
// [1, 2, 3]

reverse

Reverses an array. More precisely, it returns a copy of the array with the elements in reverse order, while leaving the original array unchanged.

const original = [1, 2, 3];
const reversed = reverse(original);
console.log(reversed);
// [3, 2, 1]