Recently, I came across a Typescript project in Vue.js with a Vuex store that had the following code:
async getUserProfile ({ dispatch, commit }: any) {}
I found working with any cumbersome as it doesn't provide helpful autocomplete features in the editor. After some research, I discovered this solution:
import { Dispatch, Commit } from "vuex";{ dispatch, commit }: any?
To utilize ActionContext<S, R>, follow the pattern seen in Vuex:
getUserProfile( context: ActionContext<S, R>) {}
In this scenario, S represents the State while R symbolizes the RootState.
Subsequently, you can execute dispatch and commit utilizing the context provided:
context.dispatch('action')
context.commit('mutation')
If you're looking for the available vuex types, take a look at this particular file:
node_modules/vuex/types/index.d.ts// line 49 :
export interface Commit {
(type: string, payload?: any, options?: CommitOptions): void;
<P extends Payload>(payloadWithType: P, options?: CommitOptions): void;
}
Instead of using ActionContext, you can import and utilize Commit in this manner:
import { Commit } from 'vuex';
const actions = {
loadUser ({ commit }: { commit: Commit }, user: any) {
commit('setUser', user);
},
...
};
I hope this information proves useful to you :)
If you prefer, you still have the option to destructure the context object.
import { ActionContext } from 'vuex';
import { RootState } from './types';
const actions = {
// Using destructuring
loadUser ({ commit }: ActionContext<RootState, RootState>, user: any) {
commit('setUser', user);
},
// Not using destructuring
loadUser (context: ActionContext<RootState, RootState>, user: any) {
context.commit('setUser', user);
},
};
To easily incorporate the Commit type from vuex into your code, you can use the following syntax:
import { Commit } from "vuex";
Then, in your actions, you can utilize it like this:
changeValue({ commit }: { commit: Commit }, new_value: number) {
commit("setNewValue", new_value);
}
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