import Repl from '@/repl/Repl.tsx'; import CodeLink from '@/mdx-components/CodeLink.tsx';

mergeWith()

Returns a copy of the collection with the remaining collections merged in, calling the merger function whenever an existing value is encountered.

A functional alternative to collection.mergeWith() which will also work with plain Objects and Arrays.

<Repl defaultValue={const original = { x: 123, y: 456 } mergeWith( (oldVal, newVal) => oldVal + newVal, original, { y: 789, z: 'abc' } )} />