option-t/esm/undefinable/operators/to_nullable.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 { isUndefined } from '../core/undefinable.js';
/**
 *  Return `null` if _input_ is `undfined`.
 *  Otherwise, return `T` directly.
 */
export function toNullableFromUndefinable(input) {
    if (isUndefined(input)) {
        return null;
    }
    return input;
}