@mobily/ts-belt/dist/types/Bool/index.js.flow

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

// @flow

/**
 * Folds a boolean value into a value of a different type, using a function for the `true` and `false` cases.
 */
declare export function ifElse<A>(
  value: boolean,
  truthyFn: () => A,
  falsyFn: () => A
): A;
declare export function ifElse<A>(
  truthyFn: () => A,
  falsyFn: () => A
): (value: boolean) => A;

/**
 * Negates the given boolean.
 */
declare export function inverse(value: boolean): boolean;

/**
 * Alias for inverse.
 */
declare export function not(value: boolean): boolean;

/**
 * Combines two boolean using `AND` → `a && b`.
 */
declare export function and(b: boolean): (a: boolean) => boolean;
declare export function and(a: boolean, b: boolean): boolean;

/**
 * Combines two boolean using `OR` → `a || b`.
 */
declare export function or(b: boolean): (a: boolean) => boolean;
declare export function or(a: boolean, b: boolean): boolean;

/**
 * Combines two booleans using `NAND` → `!(a && b)`.
 */
declare export function nand(b: boolean): (a: boolean) => boolean;
declare export function nand(a: boolean, b: boolean): boolean;

/**
 * Combines two booleans using `NOR` → `!(a || b)`.
 */
declare export function nor(b: boolean): (a: boolean) => boolean;
declare export function nor(a: boolean, b: boolean): boolean;

/**
 * Combines two booleans using `XOR` → `(!a && b) || (a && !b)`.
 */
declare export function xor(b: boolean): (a: boolean) => boolean;
declare export function xor(a: boolean, b: boolean): boolean;

/**
 * Combines two booleans using `XNOR` → `!xor(a, b)`.
 */
declare export function xnor(b: boolean): (a: boolean) => boolean;
declare export function xnor(a: boolean, b: boolean): boolean;

/**
 * Combines two booleans using an implication (`!a || b`).
 */
declare export function implies(b: boolean): (a: boolean) => boolean;
declare export function implies(a: boolean, b: boolean): boolean;