js中的异步函数中如何阻止下一步执行？-灵析社区

getPlat({"tenantId":row.id}).then(response=>{ console.log(response.rows.length) if(response.total>0){ this.$set(this.form2,"platAddr",response.rows[0].platAddr) this.$set(this.form2,"platDesc",response.rows[0].platDesc) this.$set(this.form2,"platDomain",response.rows[0].platDomain) this.$set(this.form2,"platLogo",response.rows[0].platLogo) this.$set(this.form2,"platName",response.rows[0].platName) this.$set(this.form2,"id",response.rows[0].id) }else{ console.log("未设置平台") } 返回的数据结构如下： {"total":0,"rows":[],"code":200,"msg":"查询成功"} 如上述代码加了IF判断，但是在浏览器中还是报错。 Uncaught (in promise) TypeError: response.rows[0] is undefined handlePlant index.vue:401 promise callback*handlePlant index.vue:400 click index.vue:350 VueJS 4 handleClick element-ui.common.js:9457 怎么阻止？