In addition to Weibo, there is also WeChat
Please pay attention
WeChat public account
Shulou
2025-04-08 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
Share
Shulou(Shulou.com)05/31 Report--
This article introduces the relevant knowledge of "how to use the auxiliary function of vuex". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
MapStateimport {mapState} from 'vuex'export default {/ /... Computed: {. MapState (the {/ / arrow function makes the code more concise count: state = > state.count, / / passing the string parameter 'count' is equivalent to `state.count` countAlias:' count', / / in order to be able to use `this` to get the local state You must use the regular function countPlusLocalState (state) {return state.count + this.localCount}})}
The property name defined is the same as the name in state, and you can pass in an array
/ / define stateconst state= {count:1,} / / use the helper function computed: {... mapState (['count'])} mapGetterscomputed: {. MapGetters ({/ / map `this.roomCount` to `this.getters.auxiliary TodosCount` doneCount:' doneTodosCount'})} in the component.
When the property name is the same as defined in getters, you can pass in an array
Computed: {computed: {/ / use the object expansion operator to mix getter into computed objects... mapGetters (['doneTodosCount',' anotherGetter', / /...])}}
Summary:
Both mapState and mapGetters use computed for mapping
After mapping in the component, through this. Map attribute names for use
MapMutationsmethods: {... mapMutations ({add: 'increment' / / Map `this.add () `to `this.$store.commit (' increment')`})}
When the property name is the same as defined in mapMutatios, you can pass in an array
Methods: {... mapMutations (['increment', / / map `Mutations` to `this.$store.commit (' increment') `/ / `mapMutations` also supports payload: 'incrementBy' / / map `this.incrementBy (amount)` to `this.$store.commit (' incrementBy', amount) `]) } mapActiosmathods: {... mapActions ({add: 'increment' / / Map `this.add () `to `this.$store.dispatch (' increment')`})}
When the property name is the same as defined in mapActios, you can pass in an array
Methods: {... mapActions (['increment', / / mapping `this.$store.dispatch () `to `this.$store.dispatch (' increment')` / / `mapActions` also supports payload: 'incrementBy' / / mapping `this.incrementBy (amount) `to `this.$store.dispatch (' incrementBy', amount)`]),}
Summary
Both mapMutations and mapActios are mapped in methods
Become a method after mapping
Multiple modules
When not using auxiliary functions
This.$store.commit ('app/addCount')
Using the helper function, the first argument of the helper function gives the path to the namespace
Computed: {... mapState ('some/nested/module', {a: state = > state.a, b: state = > state.b})}, methods: {. MapActions (' some/nested/module', ['foo', / /-> this.foo ()' bar' / /-> this.bar ()])}
Or use the createNamespacedHelpers function to create a namespace-based helper function
Import {createNamespacedHelpers} from 'vuex'const {mapState, mapActions} = createNamespacedHelpers (' some/nested/module') / / the given path / / use method is the same as before export default {computed: {/ / find... mapState ({a: state = > state.a, b: state = > state.b})} Methods: {/ / find... mapActions (['foo',' bar'])}} "how to use the auxiliary function of vuex" in `some/nested/ module`. That's it. Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!
Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.
Views: 0
*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.
Continue with the installation of the previous hadoop.First, install zookooper1. Decompress zookoope
"Every 5-10 years, there's a rare product, a really special, very unusual product that's the most un
© 2024 shulou.com SLNews company. All rights reserved.