option-t
Version:
A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.
10 lines (9 loc) • 303 B
TypeScript
import { type Undefinable } from '../core/undefinable.js';
/**
* Return one of this pattern:
*
* 1. a=others, b=undefined => _a_
* 2. a=undefined, b=others => _b_
* 3. Others => `undefined`
*/
export declare function xorForUndefinable<T>(a: Undefinable<T>, b: Undefinable<T>): Undefinable<T>;