is-kit

is-kit logo

Type-veilige hulpprogramma’s om isXXX-guards te bouwen in TypeScript. Lichtgewicht, geen dependencies.

Installatie

pnpm add is-kit

Gebruik

import { define } from 'is-kit';


const isString = define<string>((x) => typeof x === 'string');


if (isString('hello')) {
  // narrowed to string
}

Functies

Type-veilige predicaten

Stel predicaten samen die types precies verfijnen.

API Referentie

define
Wrap a predicate as a typed guard.
logic
Logical combinators: and, andAll, or, not, guardIn.
parse
Safe parsing with tagged results.
struct
Shape guard for objects; supports exact key checking.
arrayOf
Guard arrays with an element guard.
oneOf
Passes when any guard passes (union).
Lees de volledige TypeDoc