@equinor/fusion-observable/dist/esm/operators/map-prop.js

WIP

import { map } from 'rxjs/operators';
/**
 * RxJS operator that extracts a nested property from emitted objects using
 * a dot-separated string path.
 *
 * @template TObject - The source object type.
 * @template TPath - A dot-separated path string matching nested keys of `TObject`.
 * @param path - The dot-separated property path to extract (e.g., `'user.profile.name'`).
 * @returns An `OperatorFunction` that maps each emitted object to the value at the given path.
 *
 * @example
 * ```ts
 * import { mapProp } from '@equinor/fusion-observable/operators';
 *
 * state$.pipe(
 *   mapProp('user.name'),
 * ).subscribe(console.log); // emits the user's name
 * ```
 */
export const mapProp = (path) => map((obj) => {
    return String(path)
        .split('.')
        .reduce(
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    (cur, attr) => cur[attr], obj);
});
export default mapProp;
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