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Vue.js State Management with Vuex Quiz

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Question 1/15

What is the purpose of the mapGetters helper in Vuex?

Select your answer

To initialize default state in the Vuex store.

To map mutations to component methods a shuffle order.

To bind Vuex getters to computed properties in Vue components.

To automatically record state changes in the application.

Question 2/15

Which Vuex feature allows you to organize mutations, actions, and state?

Select your answer

Directives.

Modules.

Components.

Filters.

Question 3/15

How can you delay or debounce actions in Vuex effectively?

Select your answer

By using a getter to delay state access.

By using Vue's built-in delay directive.

By using a debounce function or library inside the action itself.

By nesting the actions inside mutation with a setTimeout.

Question 4/15

Which Vuex concept allows storing data persistently across page reloads?

Select your answer

Middlewares.

Plugins.

Services.

Reducers.

Question 5/15

In Vuex terminology, what are 'mutations'?

Select your answer

Methods that retrieve data from the store without altering it.

Asynchronous operations that update the store's data.

Functions that change the state in Vuex store and must be synchronous.

Hooks that run before every data update in the Vuex store.

Question 6/15

What is a potential drawback of using Vuex for state management in very small applications?

Select your answer

It reduces the performance of the Vue app.

It is incompatible with component-based architecture.

It eliminates the reactivity of Vue components.

It can introduce unnecessary complexity and boilerplate for simple applications.

Question 7/15

How can you dispatch an action in Vuex from a component?

this.$store.dispatch('incrementAsync')

Select your answer

By directly calling the action function from the store state.

By using the

this.$store.dispatch('actionName')

method.

By using

this.$store.commit('actionName')

Automatically when a state change occurs.

Question 8/15

What are 'getters' in the context of Vuex?

Select your answer

Functions that compute derived state based on store state.

Assorted methods for handling user events in the store.

Functions that modify the state in Vuex.

Selectors that manage routing inside Vue components.

Question 9/15

What is the purpose of Vuex modules?

Select your answer

To organize the store into separate managed parts, each with its own namespace.

To structure Vue components hierarchically.

To define global components for reuse.

To import and export components efficiently.

Question 10/15

How do you commit a mutation in Vuex from a Vue component?

this.$store.commit('increment')

Select your answer

Using a custom event listener on the store object.

Modifying the state object directly.

Calling the

this.$store.dispatch('mutationName')

method.

Using the

this.$store.commit('mutationName')

method.

Question 11/15

What key limitation is addressed by Vuex compared to local state management across multiple components?

Select your answer

Vuex handles view component animations more fluently than local state.

Vuex removes the need for direct DOM manipulation for UI updates.

Vuex offers automatic global styling for consistent component appearance.

Vuex provides a shared state management solution that removes props and events for data passage between components.

Question 12/15

What does Vuex use to enforce strict state management rules, preventing accidental modification of state?

Select your answer

Data locking strategy.

Vuex observables.

Action-only operations.

Strict mode.

Question 13/15

How can you access a Vuex getter from a Vue component?

computed: {
    doubledCount() {
        return this.$store.getters.doubledCount;
    }
}

Select your answer

Using

this.$store.state['getterName']

directly.

Using

this.$store.getters['getterName']

within a computed property.

Assigning directly from the store within the component's data object.

Through props passed from the parent component.

Question 14/15

How does Vuex improve coordination and predictability of state changes across components?

Select your answer

By enforcing a single source of truth and predictable mutations to track changes.

By separating all state into isolated providers, similar to React hooks.

By removing the need for computed properties and watchers.

By facilitating auto synchronization with a central server.

Question 15/15

How can you map a Vuex state property to a Vue component's computed property using ES6 destructuring?

computed: {
    ...mapState({
        myStateProperty: state => state.property
    })
}

Select your answer

By calling the property directly in the component's data.

By using

mapState({ myStateProperty: state => state.property })

By using a special Vue directive within the HTML template.

By importing the state property in the component's script.

Your Results

You did not answer any questions correctly.

Your Answers

Question 1/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is the purpose of the <code>mapGetters</code> helper in Vuex?

Available answers

To initialize default state in the Vuex store.

To map mutations to component methods a shuffle order.

To bind Vuex getters to computed properties in Vue components.

To automatically record state changes in the application.

The mapGetters helper is used to easily bind Vuex getters to Vue component computed properties.

Question 2/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which Vuex feature allows you to organize mutations, actions, and state?

Available answers

Directives.

Modules.

Components.

Filters.

In Vuex, modules allow you to divide your store into smaller, manageable pieces, each with its own state, mutations, actions, and getters.

Question 3/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you delay or debounce actions in Vuex effectively?

Available answers

By using a getter to delay state access.

By using Vue's built-in delay directive.

By using a debounce function or library inside the action itself.

By nesting the actions inside mutation with a setTimeout.

Actions in Vuex can implement debouncing through functional libraries or custom debounce functions to control the timing of the dispatch.

Question 4/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which Vuex concept allows storing data persistently across page reloads?

Available answers

Middlewares.

Plugins.

Services.

Reducers.

Plugins in Vuex can extend store functionality, including persisting data across page reloads using local storage or other storage mechanisms.

Question 5/15

😊 Your answer was correct 🙁 Your answer was incorrect

In Vuex terminology, what are 'mutations'?

Available answers

Methods that retrieve data from the store without altering it.

Asynchronous operations that update the store's data.

Functions that change the state in Vuex store and must be synchronous.

Hooks that run before every data update in the Vuex store.

Mutations in Vuex are functions that directly modify the state and must be synchronous to ensure predictability.

Question 6/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is a potential drawback of using Vuex for state management in very small applications?

Available answers

It reduces the performance of the Vue app.

It is incompatible with component-based architecture.

It eliminates the reactivity of Vue components.

It can introduce unnecessary complexity and boilerplate for simple applications.

For very small applications, Vuex can add unnecessary complexity, making your codebase more complicated than needed.

Question 7/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you dispatch an action in Vuex from a component?

this.$store.dispatch('incrementAsync')

Available answers

By directly calling the action function from the store state.

By using the <pre><code>this.$store.dispatch('actionName')</code></pre> method.

By using <pre><code>this.$store.commit('actionName')</code></pre>.

Automatically when a state change occurs.

To dispatch an action, use

this.$store.dispatch('actionName')

, where 'actionName' is the name of the action.

Question 8/15

😊 Your answer was correct 🙁 Your answer was incorrect

What are 'getters' in the context of Vuex?

Available answers

Functions that compute derived state based on store state.

Assorted methods for handling user events in the store.

Functions that modify the state in Vuex.

Selectors that manage routing inside Vue components.

Getters in Vuex are used to compute derived state from the store's state, similar to computed properties in components.

Question 9/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is the purpose of Vuex modules?

Available answers

To organize the store into separate managed parts, each with its own namespace.

To structure Vue components hierarchically.

To define global components for reuse.

To import and export components efficiently.

Vuex modules help keep your store organized by dividing it into separate parts, which can be easy to manage and test individually.

Question 10/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you commit a mutation in Vuex from a Vue component?

this.$store.commit('increment')

Available answers

Using a custom event listener on the store object.

Modifying the state object directly.

Calling the <pre><code>this.$store.dispatch('mutationName')</code></pre> method.

Using the <pre><code>this.$store.commit('mutationName')</code></pre> method.

To commit a mutation in Vuex, you use the method

this.$store.commit('mutationName')

, where 'mutationName' is the name of the mutation.

Question 11/15

😊 Your answer was correct 🙁 Your answer was incorrect

What key limitation is addressed by Vuex compared to local state management across multiple components?

Available answers

Vuex handles view component animations more fluently than local state.

Vuex removes the need for direct DOM manipulation for UI updates.

Vuex offers automatic global styling for consistent component appearance.

Vuex provides a shared state management solution that removes props and events for data passage between components.

Vuex addresses data consistency challenges across multiple components by centralizing and sharing state, which is difficult to manage with local state alone.

Question 12/15

😊 Your answer was correct 🙁 Your answer was incorrect

What does Vuex use to enforce strict state management rules, preventing accidental modification of state?

Available answers

Data locking strategy.

Vuex observables.

Action-only operations.

Strict mode.

Vuex provides a strict mode that throws errors if the state is mutated outside of mutation handlers, ensuring a more predictable state management.

Question 13/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you access a Vuex getter from a Vue component?

computed: {
    doubledCount() {
        return this.$store.getters.doubledCount;
    }
}

Available answers

Using <pre><code>this.$store.state['getterName']</code></pre> directly.

Using <pre><code>this.$store.getters['getterName']</code></pre> within a computed property.

Assigning directly from the store within the component's data object.

Through props passed from the parent component.

To access getters in a Vue component, use

this.$store.getters['getterName']

inside a computed property.

Question 14/15

😊 Your answer was correct 🙁 Your answer was incorrect

How does Vuex improve coordination and predictability of state changes across components?

Available answers

By enforcing a single source of truth and predictable mutations to track changes.

By separating all state into isolated providers, similar to React hooks.

By removing the need for computed properties and watchers.

By facilitating auto synchronization with a central server.

Vuex allows better coordination and predictability by enforcing a single source of truth and requiring mutations for any state change.

Question 15/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you map a Vuex state property to a Vue component's computed property using ES6 destructuring?

computed: {
    ...mapState({
        myStateProperty: state => state.property
    })
}

Available answers

By calling the property directly in the component's data.

By using <pre><code>mapState({ myStateProperty: state => state.property })</code></pre>.

By using a special Vue directive within the HTML template.

By importing the state property in the component's script.

With mapState, you can use ES6 arrow functions and the spread operator to map state properties to component computed properties.