alwz/build/types/models/Is.d.ts

Extendable library for typecasting

import { Type } from '../constants/types.js';
export type Guard<T> = (input?: unknown) => input is T;
declare const _default: {
    /**
     * @example
     * const isString = type('string');
     * isString(1); // false
     * isString('1'); // true
     */
    type: <Name extends keyof import("../constants/types.js").TypesMap>(type: Name) => Guard<Type<Name>>;
    /**
     * @example
     * class Test {}
     * const isTest = instance(Test);
     * isTest({}); // false
     * isTest(new Test()); // true
     */
    instance: <T>(prototype: T) => Guard<T>;
    /**
     * @example
     * const isVariant = variant([1, 2, 3]);
     * isVariant(4); // false
     * isVariant(3); // true
     */
    variant: <T_1>(list: T_1[]) => Guard<T_1>;
    /**
     * @example
     * const isOdd = check((v) => v % 2 ? true : false);
     * isOdd(0); // false
     * isOdd(1); // true
     */
    check: <T_2>(guard: Guard<T_2>) => Guard<T_2>;
};
export default _default;
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