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 { AsyncTransformFn, AsyncRecoveryFn } from '../../internal/function.js';
import { type Option } from './option.js';
/**
* Maps a `Option<T>` to `U` by applying _transformer_ to a contained `Some(T)` value in _input_,
* or a _recoverer_ function to a contained `None` value in _input_.
* This function can be used to unpack a successful result while handling an error.
*/
export declare function mapOrElseAsyncForOption<T, U>(input: Option<T>, recoverer: AsyncRecoveryFn<U>, transformer: AsyncTransformFn<T, U>): Promise<U>;