What are the ways to implement global variables in Uniapp?

In uni-app, global variables can be implemented in several ways.

1. Using Vuex: Vuex is a state management pattern designed specifically for Vue.js, used to manage global variables in an application. In Uni-app, you can create a store to store global variables and call them wherever needed.
2. By using the data attribute in App.vue: In the App.vue file, you can define a data attribute to store global variables, which can be accessed in child components by using this.$parent to access the parent component’s data.
3. Utilizing a global mixin in uni-app allows for the creation of a global mixin in uni-app, which can then be imported into the necessary pages or components to achieve shared global variables.
4. With the global configuration of uni-app, you can define global variables in the onLaunch lifecycle of App.vue, and then access and modify these global variables in the required locations using the uni.getStorageSync and uni.setStorageSync methods.

These are several commonly used ways to implement global variables in uni-app, developers can choose the appropriate method according to their needs for managing global variables.