VueJS: Best practice for working with global object between components?
Note: Applies for Vue 2x
Proposal 1: Using getters from vuex
- You could use
getters
along withmapGetters
from Vuex to include users within computed properties for each component.
Vuex
getters: {
// ...
getUser: (state, getters) => {
return getters.user
}
}
component
import { mapGetters } from 'vuex'
computed: {
...mapGetters([getUser])
}
Proposal 2: add a watcher via plugin
Vue
// When using CommonJS via Browserify or Webpack
const Vue = require('vue')
const UserPlug = require('./user-watcher-plugin')
// Don't forget to call this
Vue.use(UserPlug)
user-watcher-plugin.js
const UserPlug = {
install(Vue, options) {
// We call Vue.mixin() here to inject functionality into all components.
Vue.watch: 'user'
}
};
export default UserPlug;
Proposal 3: add a computed property user
as plugin via mixin
Vue
// When using CommonJS via Browserify or Webpack
const Vue = require('vue')
const UserPlug = require('./user-watcher-plugin')
// Don't forget to call this
Vue.use(UserPlug)
user-watcher-plugin.js
const UserPlug = {
install(Vue, options) {
// We call Vue.mixin() here to inject functionality into all components.
Vue.mixin({
computed: {
user: function() {
return this.$store.state.user
}
}
})
}
};
export default UserPlug;
Based on @Denis answer, specifically Proposal 3, Here is the UserPlugin.js
:
import store from '@/store/store';
import User from './User';
const UserPlugin = {
install(Vue) {
const $user = new User();
window.$user = $user;
store.commit('setUser', $user);
Vue.mixin({
computed: {
$user() {
return store.state.user;
}
}
});
}
};
export default UserPlugin;
and main.js
:
import UserPlugin from './common/UserPlugin';
Vue.use(UserPlugin);
new Vue({
render: h => h(App)
}).$mount('#app');
For further usage, I published small library for solving these kinda issues:
https://www.npmjs.com/package/vue-global-var