@mobily/ts-belt/dist/types/Guards/index.d.ts

🔧 Fast, modern, and practical utility library for FP in TypeScript.

import { GuardValue } from '../types';
import { GuardObject } from '../types';
import { GuardPromise } from '../types';
import { GuardArray } from '../types';
export declare function isString<A>(value: A | string): value is GuardValue<A, string>;
export declare function isNumber<A>(value: A | number): value is GuardValue<A, number>;
export declare function isBoolean<A>(value: A | boolean): value is GuardValue<A, boolean>;
export declare function isPromise<A>(value: A | Promise<unknown>): value is GuardPromise<A>;
export declare function isArray<A>(value: A | ReadonlyArray<unknown>): value is GuardArray<A>;
export declare function isObject<A>(value: A | object): value is GuardObject<A>;
export declare function isFunction<A>(value: A | Function): value is GuardValue<A, Function>;
export declare function isError<A>(value: A | Error): value is GuardValue<A, Error>;
export declare function isDate<A>(value: A): value is Extract<A, Date>;
export declare function isNullable<A>(value: A): value is Extract<A, null | undefined>;
export declare function isNotNullable<A>(value: A): value is NonNullable<A>;
export declare function isNull<A>(value: A | null | undefined): value is null;
export declare function isUndefined<A>(value: A | null | undefined): value is undefined;
export declare function isNot<A, B extends A>(value: A, predicateFn: (value: A) => value is B): value is Exclude<A, B>;
export declare function isNot<A, B extends A>(predicateFn: (value: A) => value is B): (value: A) => value is Exclude<A, B>;
export declare function isNot<A>(value: A, predicateFn: (value: A) => any): boolean;
export declare function isNot<A>(predicateFn: (value: A) => any): (value: A) => boolean;