Q161. How do you inject store into child components?
Vuex provides a mechanism to "inject" the store into all child components from the root component with the store option. It will be enabled by vue.use(vuex). For example,...
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Q162. What is mapState helper?
In Vuex application, creating a computed property every time whenever we want to access the store's state property or getter is going to be repetitive and verbose, especi...
Q163. How do you combine local computed properties with mapState helper?
You can use object spread operator syntax in order to combine mapState helper(which returns an object) with other local computed properties. This way it simplify merging ...
Q164. Do you need to replace entire local state with vuex?
No, if a piece of state strictly belongs to a single component, it could be just fine leaving it as local state. i.e, Even though vuex used in the application, it doesn't...
Q165. What are vuex getters??
Vuex getters acts as computed properties for stores to compute derived state based on store state. Similar to computed properties, a getter's result is cached based on it...
Q166. What is a property style access?
You can access values of store's getter object(store.getters) as properties. This is known as property style access. For example, you can access todo's status as a proper...
Q167. What is a method style access?
You can access store's state in a method style by passing arguments. For example, you can pass user id to find user profile information as below, ```javascript getters: {...
Q168. What is mapGetter helper??
The mapGetters is a helper that simply maps store getters to local computed properties. For example, the usage of getters for todo app would be as below, ```javascript im...
Q169. What are mutations?
Vuex mutations are similar to any events with a string `type` and a `handler`. The handler function is where we perform actual state modifications, and it will receive th...
Q170. How do you commit with payload?
You can also pass **payload** for the mutation as an additional argument to `store.commit`. For example, the counter mutation with payload object would be as below, ```ja...