JavaScript Get object value by path

index.js

/**
 * Get the object value by path
 * @param {object} obj
 * @param {string} path
 * @return {any}
 * @example
 *   getObjectValue({ str: 'string', int: 0 }, 'str'); //=> 'string' 
 *   getObjectValue({ obj: { str: 'string', int: 0 } }, 'obj.str'); //=> 'string' 
 *   getObjectValue({ arr: [{ str: 'string', int: 0 }] }, 'obj[0].str'); //=> 'string'
 *   getObjectValue({ arr: [{ str: 'string', int: 0 }] }, 'obj[*].str'); //=> ['string']
 */
function getObjectValue(obj, path) {
    try {
        const segments = path.split('.');
        let result = obj;

        for (const [index, segment] of segments.entries()) {
            const matches = /^(\w+)?\[(\d+|\*)\]$/.exec(segment);
            if (!matches) {
                result = result[segment];
                continue;
            }

            const [_inp, k, i] = matches;
            if (k !== undefined) {
                result = result[k];
            }

            if (i === '*') {
                const arr = segments.slice(index + 1);
                const p = arr.join('.');
                // return undefined when arr[0] is empty
                if (typeof arr[0] === 'string' && !arr[0].trim().length) {
                    throw new Error('Invalid path');
                }

                const values = result.map((v) => p ? getObjectValue(v, p) : v);
                const isValueEmpty = values.every((v) => v === undefined);
                result = !isValueEmpty ? values : undefined;
                break;
            }

            result = result[i];
        }

        return result;
    } catch (error) {
        return undefined;
    }
}