For Loop current item dot notation 不起作用

Question

美好的一天，有人可以帮我解决我在这里遇到的问题吗，我有一个对象数组的 for 循环，我可以使用带有括号表示法的数组名称访问 for 循环中的当前对象，并且然后通过在最后添加点符号来获得对象键。但是，当我尝试在 for 循环内访问 Axios 请求中的相同值时，它说无法访问未定义的键；

查看下面的代码查看 Axios 请求的 URL 值

var branches = [{"Key":"QXdpYWthbmRhIEZvb2Rz","Name":"Awiakanda Foods"},{"Key":"VldDIExPR0lTVElDUw","Name":"VWC LOGISTICS"},{"Key":"RXllbWFzdGVycyBMaW1pdGVkIC0gRmVzdGFj","Name":"Eyemasters Limited - Festac"}];

for (let i = 0; i <= this.branches.length; i++) {
      var branch = this.branches[i];
      console.log(branches[i].Key); //logs the key correctly but the axios request below cannot find Key
      await this.$axios({
          method: "GET",
          url: `${apiBase + branch.Key}/${clientUrl + apiRoot}`,
          headers,
        })
          .then(async (result) => {
            if (this.branch.Name === "Awiakanda Foods") {
              await this.$store.dispatch("awiakanda/updateLinks", result.data);
            }})
          .catch((err) => {
            console.log(err);
          });
    }

Answer 1

您正在尝试访问不存在的 branches[length] 元素。不要尝试访问绑定元素之外的数组。我 < array.length 正确方法如下：

 var branches = [{"Key":"QXdpYWthbmRhIEZvb2Rz","Name":"Awiakanda Foods"},{"Key":"VldDIExPR0lTVElDUw","Name":"VWC LOGISTICS"},{"Key":"RXllbWFzdGVycyBMaW1pdGVkIC0gRmVzdGFj","Name":"Eyemasters Limited - Festac"}];
    for (let i = 0; i < this.branches.length; i++) {
          var branch = this.branches[i];
          console.log(branch);
          console.log(branches[i].Key); 
          console.log(branch.Key);
        }

For Loop current item dot notation 不起作用

For Loop current item dot notation not working

javascript

vue.js

axios

nuxtjs