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Vue.js Basics

1/25 What is the difference between v-html and v-text?
- v-text sets the textContent of the node
- v-html sets the innerHTML of the element
- Both of the statements above are true.
- Both of the statements are false.
2/25 What is used to dynamically bind one or more attributes either a component property to an expression?
- v-pre
- v-bind
- v-once
- v-html
3/25 Which is the correct way of generating a new instance in Vue.js?
- var text = new Vue({ // options })
- var text = new vue(){ // options }
- var text = new object({ // options })
- var text = new text({ // options })
4/25 V-show does not support the <template> element.
- True
- False
5/25 All are life cycle hooks in Vue except ...
- beforeCreate
- created
- mounted
- beforeMount
- didMount
6/25 How $parent is described in Vue?
- The $parent property, like $root, can be used for accessing the parent instance from a child.
- It provides direct access, making the application hard to test and debug.
- Both of the options above are true.
- None of the above is true.
7/25 Which Vue.js lifecycle hook should be used for fetching data when a component is created?
- mounted
- created
- beforeCreate
- beforeMount
8/25 What is the purpose of the 'mixins' feature in Vue.js?
- For styling components
- For sharing functionality between components
- For rendering components on the server side
- For managing application state
9/25 What is the default port number Vue CLI serves the application on?
- 3000
- 8080
- 8000
- 5000
10/25 Which method is used to programmatically navigate to a different route in Vue.js using Vue Router?
- this.$route.navigate('/path')
- this.$router.push('/path')
- Vue.navigate('/path')
- this.$router.goto('/path')
11/25 What is the main purpose of using 'slots' in Vue.js components?
- To inject content into a component from its parent
- To manage global state
- To store data
- To perform data binding
12/25 How is 'Vue.nextTick()' primarily used in Vue.js?
- For error handling
- To wait for the next DOM update cycle before executing code
- To trigger a component update
- To delay a method execution
13/25 What is the typical use case for the 'created' lifecycle hook in Vue.js?
- To manipulate the DOM
- To initialize data, set up event listeners, and start timers
- To fetch server-side data
- To integrate with other JavaScript libraries
14/25 In Vue.js, how can you access the root Vue instance within a component?
- this.$root
- Vue.$root
- this.$parent.root
- this.root
15/25 What is the purpose of the 'static' keyword in a Vue.js component?
- To create a static method in a component
- To prevent reactivity on a property
- To indicate that a property should not be included in the template
- To make a property globally accessible
16/25 Which Vue.js feature is used to transform props into local, reactive data?
- Computed properties
- Watchers
- Data properties
- Props down, events up
17/25 What is the primary purpose of the 'v-bind' directive's .sync modifier in Vue.js?
- To synchronize data between parent and child components
- To keep the model and view in sync
- To automatically update a prop when its bound value changes
- To sync component methods
18/25 What is the correct way to declare a reactive property in a Vue.js component that is not part of the data object?
- Vue.reactiveProperty('newProp')
- this.$set(this, 'newProp', value)
- this.newProp = Vue.observable(value)
- Vue.defineProperty(this, 'newProp', { value })
19/25 How can you define a prop in a Vue.js component that expects a specific data type?
- props: { propName: 'String' }
- props: { propName: String }
- props: ['propName: String']
- props: { propName: { type: 'String' } }
20/25 What is the main purpose of the 'beforeRouteEnter' navigation guard in Vue Router?
- To modify route parameters before entering a route
- To perform actions before the route is confirmed
- To prevent navigation to a new route
- To load data before entering a route
21/25 Which Vue.js feature allows you to perform side effects in response to reactive data changes?
- Methods
- Computed properties
- Watchers
- Directives
22/25 How can you dynamically bind multiple attributes to an element in Vue.js?
- Using v-bind with an object
- Using multiple v-bind directives
- Using a computed property
- It's not possible to bind multiple attributes dynamically
23/25 In Vue.js, what is the primary use of the 'provide/inject' feature?
- To pass data from parent to child components
- To inject services or dependencies into a component
- To manage global state
- To provide reactive data sources
24/25 In Vue.js, what is the 'el' property used for in a Vue instance?
- To define the element to mount the Vue instance on
- To specify the parent element for the instance
- To declare reactive properties
- To set the template for the instance
25/25 What is the purpose of the 'v-show' directive in Vue.js?
- To toggle the visibility of an element
- To show an element for a single render
- To insert or remove an element from the DOM
- To display data-bound values
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