@quentinadam/require

A simple function that returns and requires that a value is not undefined or null.

Usage

import require from '@quentinadam/require';

const a = require(1); // doesn't throw

const b = require(undefined); // throws an AssertionError

require(undefined, 'message'); // throws an AssertionError with a custom error message

require(undefined, new Error('message')); // throws a custom Error

const value: string | undefined = 'hello';
const narrowedValue = require(value); // narrows the type of value to string;
value.toUpperCase(); // works