Assert utility

assert is used to check that a condition is truthy, otherwise it'll throw either a ValidationError or a custom error type.

This function is used within each of our schemas and modifiers

Arguments

• condition The condition to check.
• message? The error message to throw if the condition is false.

Example

import { assert } from '@nordic-ui/validathor';
 
assert(isAdmin === true, 'You must be an admin to perform this action');
// Or
assert(typeof 123 === 'string', new TypeError('Expected a string'));