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option-t

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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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import { isNullOrUndefined } from '../core/maybe.js'; /** * Return `undfined` if _input_ is `null` or `undfined`. * Otherwise, return `T` directly. */ export function toUndefinableFromMaybe(input) { if (isNullOrUndefined(input)) { return undefined; } return input; }