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>`.
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TypeScript
import { type Result } from '../../plain_result/core/result.js';
import { type Undefinable } from '../core/undefinable.js';
/**
* Transforms the `Undefinable<T>` into a `Result<T, E>` by mapping `T` to `Ok(T)`.
* If `input` is `undefined`, then return `Err(E)` with passed `err`.
*
* Arguments passed to this are eagerly evaluated;
* if you are passing the result of a function call, it is recommended to use okOrElse,
* which is lazily evaluated.
*/
export declare function okOrForUndefinable<T, E>(input: Undefinable<T>, err: E): Result<T, E>;