filterValues

Problem

You need to remove entries from an object where the value does not meet a condition — for example stripping null/undefined fields before sending to an API.

Solution

Use filterValues(obj, predicate) to return a new object keeping only entries where the predicate returns true.

import { filterValues } from '@vielzeug/arsenal';

const raw = { a: 1, b: null, c: 3, d: undefined };
filterValues(raw, (v) => v != null);
// { a: 1, c: 3 }

Pitfalls

• Returns a shallow copy — nested values are not cloned.

Related

• mapValues
• omit
• prune