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Vue.js Basics
1/25
If you use .passive and .prevent together, .prevent will be ignored. Probably, it will show you a warning.
True
False
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2/25
Once a View Model is destroyed, all the event listeners are automatically deleted.
True
False
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3/25
What is the correct way of installing the vue cli globally?
npm install vue-cli
npm install -g vue-cli
npm install vue-cli -global
npm install vue-cli -g
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4/25
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 })
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5/25
What keyword is used for generating a constant in Vue.js?
Define
Const
None of the above.
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6/25
Which of the following is the full form of MVVM?
Model-View-ValueModel
Model-Value-ValueModel
Model-View-ViewModel
Module-Value-ViewModel
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7/25
In Vue.js, what is the role of the 'watch' property?
To perform deep object comparisons
To execute a function when a specific data property changes
To bind data to template elements
To loop through items in an array
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8/25
What is Vuex used for in a Vue.js application?
Server-side rendering
Managing global application state
Routing
Component styling
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9/25
What is the purpose of the 'v-slot' directive in Vue.js?
To conditionally render elements
To access scoped slot content in a child component
To bind dynamic class names
To listen for DOM events
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10/25
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
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11/25
How do you access a parent component's methods from a child component?
Using this.$parent.methodName()
Using this.$child.methodName()
Using Vue.parent.methodName()
This is not possible in Vue.js
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12/25
How can you make a Vue.js component reactive to changes in an object that was not reactive initially?
Using Vue.set(object, key, value)
This is not possible in Vue.js
By reassigning the object
Using object.key = value
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13/25
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
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14/25
What is the purpose of using 'v-bind' with a class in Vue.js?
To bind a method to a class
To dynamically bind one or more class names to an element
To attach an event listener to a class
To conditionally display a class
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15/25
Which Vue.js feature is used to transform props into local, reactive data?
Computed properties
Watchers
Data properties
Props down, events up
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16/25
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
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17/25
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 })
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18/25
Which statement is true about the 'destroyed' lifecycle hook in Vue.js?
It is called before the component is removed from the DOM
It is used to clean up event listeners and reactive subscriptions
It can be used to prevent a component from being destroyed
It is called immediately after the component is created
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19/25
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
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20/25
What is the purpose of the 'name' property in a Vue.js component?
To specify the name used in the DOM
To define the component's name for recursive calls
To set the name attribute on the root element
To identify the component in Vue Devtools
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21/25
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
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22/25
How do you declare a prop in Vue.js that has a default value and validation?
props: { propName: { default: value, validator: function } }
props: ['propName', default: value, validate: function]
props: { propName: value, validator: function }
props: { propName: { value, validator: function } }
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23/25
What is the primary use of the 'props' option in a Vue.js component?
To pass data to child components
To receive data from parent components
To store internal component state
To define computed properties
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24/25
In Vue.js, how do you emit an event from a child component to its parent?
this.$emit('eventName')
Vue.emit('eventName')
this.$parent.emit('eventName')
this.$dispatch('eventName')
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25/25
Which of the following is true about Vue.js mixins?
Mixins are primarily used for styling components
Mixins are used to distribute reusable functionalities for Vue components
Mixins can only be applied globally
Mixins override the component's own methods and properties
Next >
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