function assertNotNull()

in src/index.ts [452:456]

• 5 lines of code
• 3 McCabe index (conditional complexity)

function assertNotNull<A>(x: A | undefined, msg: string = 'Null value error'): asserts x is NonNullable<A> {
  if (x === null || x === undefined) {
    throw new Error(msg);
  }
}