zarm-web/es/utils/index.js

基于 React 的桌面端UI库

export const isEmpty = val => val == null || !(Object.keys(val) || val).length;
export const invertKeyValues = (obj, fn) => Object.keys(obj).reduce((acc, key) => {
  const val = fn ? fn(obj[key]) : obj[key];
  acc[val] = acc[val] || [];
  acc[val].push(key);
  return acc;
}, {});
export const noop = () => {};