throwUnlessNumber

Description

Emits an Error if any item in the Observable is NaN or of a type that isn't a JavaScript Number object.

API

throwUnlessNum()

Since

0.5

Parameters

None

Options

None

Returns

None. (Throws error if a non-number value is encountered.)

Examples

import { throwUnlessNum } from '@buccaneer/rxjs-stats';​

const numbers = [
  0,
  1,
  'Muhahaha. I am not actually a number!',
  3,
  4,
  5
];

const output$ = from(numbers).pipe(
  throwUnlessNum()
);

output$.pipe(console.log, console.log);
// Output:
// 0
// 1
// Error