let lastId = 0; export function uniqueId(prefix = 'id') { return `${prefix}${++lastId}`; } /** * @param {object} obj * @param {array} keys * * @return {object} */ export function omit(obj, keys) { const newObj = {...obj}; keys.forEach((key) => { Reflect.deleteProperty(newObj, key); }); return newObj; }