map-transform/dist/operations/filter.js

Map and transform objects with mapping definitions

import { getStateValue, setStateValue } from '../utils/stateHelpers.js';
async function filterValue(values, filterFn, state) {
    if (Array.isArray(values)) {
        const results = [];
        for (const value of values) {
            if (await filterFn(value, state)) {
                results.push(value);
            }
        }
        return results;
    }
    else {
        const result = await filterFn(values, state);
        return result ? values : undefined;
    }
}
export default function filter(fn) {
    return (options) => (next) => {
        if (typeof fn !== 'function') {
            return async (state) => await next(state);
        }
        const fnWithOptions = fn(options);
        return async (state) => {
            const nextState = await next(state);
            return setStateValue(nextState, await filterValue(getStateValue(nextState), fnWithOptions, nextState));
        };
    };
}
//# sourceMappingURL=filter.js.map