How does uniapp determine whether to log in?

Uniapp's method of determining whether to log in: 1. Determine the page that requires login, the code is [uni.showModal({title:'Please log in', content: "Please log in",]; 2. After the user logs in After storing the user information locally, the code is [uni.setStorageSync].

The operating environment of this tutorial: windows7 system, uni-app2.5.1 version, thinkpad t480 computer.

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##uniapp determines whether to log in Method:

1. Determine whether to log in (App.vue)

global.isLogin = function(){
 try{
  var id  = uni.getStorageSync('id');
  var name = uni.getStorageSync('name');
 }catch(e){
  //TODO handle the exception
 }
 if(id == '' || name == ''){
  return false;
 }else{
  return [id, name];
 }};

2. Determine the page that requires login

var res = global.isLogin();
  if(!res){
   uni.showModal({
    title:'请登录',
    content:"请登录",
    success:function(){
     uni.navigateTo({
      url:"/pages/login"
     });
    }
   })
  }

3. On the login page, after the user logs in, the user information is stored locally

uni.setStorageSync('id', res.data.id);
uni.setStorageSync('name', res.data.name);

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