@dozerg/merge-options NPM

Merge Options

Downloads

Merge plain objects with customised rules.

Install

npm i @dozerg/merge-options

Usage

import { mergeOptions, Merger, concatArray } from '@dozerg/merge-options';

interface T {
  foo: number;
  bar?: string[];
}

const obj_1 = mergeOptions(undefined, {foo: 3, bar: ['abc']}, {foo: 4, bar: ['def']});
// obj_1 = {foo: 4, bar: ['def']}

const merger: Merger<T> = {
  bar: concatArray();
}

const obj_2 = mergeOptions(merger, {foo: 3, bar: ['abc']}, {foo: 4, bar: ['def']});
// obj_2 = {foo: 4, bar: ['abc', 'def']}