-
What is Vue.js? What are its advantages?
-
What is the MVVM pattern of Vue.js? Please explain.
-
What is two-way data binding for Vue.js? Please explain.
-
What are the components of Vue.js? Please explain.
-
What are the lifecycle hooks of Vue.js? Please list.
-
What are the directives of Vue.js? Please list.
-
What is the computed property of Vue.js? Please explain.
-
What is the watch attribute of Vue.js? Please explain.
-
What is the event mechanism of Vue.js? Please explain.
-
What is routing in Vue.js? Please explain.
Here is a sample exam question for your reference:
1. What are the advantages of Vue.js?
A. Easy to learn B. Two-way data binding C. Component-based development D. Server-side rendering E. All are correct answers
Answer: A, B, C
2. What is the MVVM pattern of Vue.js? Please explain.
Answer: MVVM is the abbreviation of Model-View-ViewModel, which is a front-end architecture pattern. Vue.js separates the view from the data model, and realizes two-way data binding through the ViewModel, realizing automatic data synchronization.
3. What is the two-way data binding of Vue.js? Please explain.
Answer: Two-way data binding means that in Vue.js, the view and the data model are related to each other. When the data changes, the view is automatically updated; when the view changes, the data model is also automatically updated.
4. What are the components of Vue.js? Please explain.
Answer: Component is an important concept in Vue.js, which can split a page into multiple small components, each with independent data and behavior. Components can be reused, improving code reusability and maintainability.
5. What are the life cycle hooks of Vue.js? Please list.
Answer: The life cycle hooks of Vue.js are beforeCreate, created, beforeMount, mounted, beforeUpdate, updated, beforeDestroy, destroyed.
6. What are the instructions of Vue.js? Please list.
Answer: Vue.js commands include v-if, v-for, v-bind, v-model, v-show, v-on, etc.
7. What is the computed property of Vue.js? Please explain.
Answer: The computed attribute is a computed attribute in Vue.js, which can calculate a new attribute based on existing attributes. Computed properties are automatically updated when existing properties change. The characteristic of computed properties is that they are recalculated only when necessary.
8. What is the watch attribute of Vue.js? Please explain.
Answer: The watch attribute is an observation attribute in Vue.js, which can monitor a data change and execute a specific logic when the data changes. The feature of the watch attribute is that it can monitor the changes of any data, including objects and arrays.
9. What is the event mechanism of Vue.js? Please explain.
Answer: The event mechanism of Vue.js is implemented through the v-on directive. An event can be bound to an HTML tag, and when the event is triggered, Vue.js will execute the corresponding logic.
10. What is the routing of Vue.js? Please explain.
Answer: The routing of Vue.js refers to the jump between pages through the URL. In Vue.js, routing is implemented through vue-router. Routing can realize page loading on demand, improving page loading speed and user experience.