option-t/esm/nullable/operators/or_else_async.js

A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

import { isNotNull } from '../core/nullable.js';
/**
 *  Return _input_ as `T` if the passed _input_ is not `null`.
 *  Otherwise, return the result of _recoverer_.
 */
export async function orElseAsyncForNullable(input, recoverer) {
    if (isNotNull(input)) {
        return input;
    }
    const fallback = await recoverer();
    return fallback;
}