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Vuex project structure directory and some simple configuration introduction

亚连
Release: 2018-05-26 13:52:10
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This article mainly introduces the vuex project structure directory and some simple configurations. Friends in need can refer to it

First of all, here is a serious "advice" from the official website:

Rules that vuex needs to follow:

1. Application-level status should be concentrated into a single store object.

2. Submitting a mutation is the only way to change the state, and this process is synchronous.

3. All asynchronous logic should be encapsulated into action.

File directory structure

Relationship between files:

store folder - stores vuex series files

store.js - Introduce vuex, set state data, introduce getter, mutation and action

getter.js - Get the status in the store

mutation.js - Used to change the status in the store The place where functions are stored

action.js - Submit mutations to modify the state tactfully, and can operate asynchronously

Simple and ordinary writing method

store.js file :

import Vue from 'vue'
import Vuex from 'vuex'
import actions from './actions'
import mutations from './mutations'
Vue.use(Vuex)
const state = {
 a: '初始值',
 b: 'balabala...'
}
export default new Vuex.Store({
  state,
  actions,
  mutations
})
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In the main.js file (inject the store from the root component, just like injecting the router):

By in the root instance Register the store option. The store instance will be injected into all sub-components under the root component, and the sub-components can be accessed through this.$store.

import store from './store/index'
new Vue({
 el: '#app',
 router,
 store,
 ...
})
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Simple configuration of Getter.js (calculated property of store, accepting state as parameter)

export default {
  doneTodos: state = >{
   return state.todos.filter(todo = >todo.done)
  }
}
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Get (inside the calculated property of a component):

computed: {
 doneTodosCount () { 
  return this.$store.getters.doneTodosCount 
 }
}
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Simple configuration of the getter property that can pass parameters

export default{

 getTodoById: (state) => (id) => { 
  return state.todos.find(todo => todo.id === id) 
 }
}
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Get (internal calculated properties of a component):

computed: {
 getTodoById() { 
  return this.$store.getters.getTodoById(‘参数')
 }
}
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mutation.js simple configuration:

export default {
  increment(state) {
   //变更状态
   state.count++
  }
}
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Trigger (in component)

this.$store.commit(state,payload)
actions.js简单配置:
export default{
 action (context) {
 //异步操作
  setTimeout(()=>{
   //变更状态
   context.commit('mutationFunName',value)
  })
 }
}
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Trigger (in component)

this.$store.dispatch('mutationFunctionName')
2018-04-07 18:13:34
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The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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