option-t/esm/deprecated/plain_option/from_result.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 { isErr, isOk, unwrapErr, unwrapOk } from '../../plain_result/core/result.js';
import { createNone, createSome } from './option.js';
/**
 *  Convert to `Some(T)` if _input_ is `Ok(T)`.
 *  Otherwise, return `None`.
 */
export function fromOkToOption(input) {
    if (isOk(input)) {
        const val = unwrapOk(input);
        return createSome(val);
    }
    return createNone();
}
/**
 *  Convert to `Some(E)` if _input_ is `Err(E)`.
 *  Otherwise, return `None`.
 */
export function fromErrToOption(input) {
    if (isErr(input)) {
        const err = unwrapErr(input);
        return createSome(err);
    }
    return createNone();
}