参数 >= 3 时，最好封装在对象中传递才更优雅。

关于页面中异步函数调用，最好使用async/await。

1. 标签上的行为操作，简单写

       // 创建 or 更新
       async saveHandler() {
           const data = this.state;
           if (data.status) {
               this.showToast('在线状态不允许更改数据，如需修改，请先下线该配置');
               return;
           }
           const canSubmit = this.validata();
           if (!canSubmit) {
               return;
           }
           const configs = this.formatData();
           const self = this;
           try {
               const self = this;
               const type = state.get('isEditPage') ? 'update' : 'create';
               const response = await ajax.post('/api/new/resource/configRule/create').send(Object.assign(data, { configs, businessKey, type }));
               if (!response) {
                   throw new Error('网络异常，请稍后重试');
               }
               const res = response.body || {};
               if (res.status !== 0) {
                   if (res.error && res.error.message) {
                       throw new Error(res.error.message);
                   }
                   throw new Error('网络异常，请稍后重试');
               }
               self.showToast('创建成功', 3000);
               window.location.href = `/resource/config/list/${businessKey}`;
           } catch (e) {
               self.showToast(e.toString(), 3000);
           }
       }
   

2. 方法之间的调用

   const logger = (...args) => {
     console.log(`[${new Date()}]`, ...args);
   }
   
   async function myAsyncFunc() {
     function promiseHelper() {
       return new Promise(resolve => setTimeout(() => resolve(123), 1000));
     }
   
     const data = await promiseHelper();
     logger("in myAsyncFunc, data:", data);
     return data;
   }
   
   function main() {
     myAsyncFunc()
       .then(data => {
         logger("in main, data:", data);
       })
       .catch(console.error);
   }
   
   logger('start!');
   main();