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Vue.js Basics
1/25
How to use for loop in Vue.js?
vFor
*v-for
v-for
*ngFor
Next >
2/25
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
Next >
3/25
V-show does not support the <template> element.
True
False
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4/25
All are life cycle hooks in Vue except ...
beforeCreate
created
mounted
beforeMount
didMount
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5/25
V-model directive is used in ...
two-way data binding where the view(UI) part of application automatically updates when data Model is changed.
two-way data binding where the view(UI) part of application does not update automatically. We need to write some custom code to make it updated every time a data model is changed.
one-way data binding where the view(UI) part of application automatically updates when data Model is changed.
one-way data binding where the view(UI) part of application does not updates automatically. Some custom code should be written for making it updated every time a data model is modified.
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6/25
What is the purpose of the 'computed' property in Vue.js?
To store application state
To define methods
To define asynchronous operations
To calculate and return a value based on reactive dependencies
To interact with the DOM directly
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7/25
How can you pass data from a parent to a child component in Vue.js?
Using the $emit method
Using the $parent property
Using props
Using global state management
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8/25
In Vue.js, how can you listen to native DOM events on a custom component?
Using the '.native' modifier on a 'v-on' directive
Using the 'v-model' directive
Using the 'v-if' directive
Using the 'v-show' directive
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9/25
Which Vue.js lifecycle hook should be used for fetching data when a component is created?
mounted
created
beforeCreate
beforeMount
Next >
10/25
What is the purpose of the 'mixins' feature in Vue.js?
For styling components
For sharing functionality between components
For rendering components on the server side
For managing application state
Next >
11/25
How do you access a parent component's methods from a child component?
Using this.$parent.methodName()
Using this.$child.methodName()
Using Vue.parent.methodName()
This is not possible in Vue.js
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12/25
What is the role of the 'filters' feature in Vue.js?
For creating global mixins
For applying common text formatting
For filtering items in a v-for list
For validating form inputs
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13/25
Which method is used to programmatically navigate to a different route in Vue.js using Vue Router?
this.$route.navigate('/path')
this.$router.push('/path')
Vue.navigate('/path')
this.$router.goto('/path')
Next >
14/25
In Vue.js, which is the correct way to register a local component?
Vue.component('my-component', {})
components: {'my-component': {}}
Vue.register('my-component', {})
Vue.use('my-component', {})
Next >
15/25
What is the main use of the 'v-pre' directive in Vue.js?
To pre-load data before rendering a component
To skip compilation for this element and all its children
To give priority rendering to an element
To preserve the original state of an element
Next >
16/25
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
Next >
17/25
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
Next >
18/25
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' } }
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19/25
In Vue.js, which of the following is a correct way to make a deep watch on an object?
watch: { 'object': { deep: true } }
watch: { object: { handler: 'method', deep: true } }
watch: { object.deep: 'method' }
this.$watch('object', 'method', { deep: true })
Next >
20/25
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
Next >
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
Next >
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 } }
Next >
23/25
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
Next >
24/25
What is the role of the 'key' attribute in a Vue.js 'v-for' loop?
To provide a unique identifier for each element in the loop
To define the index of each item in the loop
To increase performance by reusing elements
To specify the loop's execution order
Next >
25/25
In Vue.js, what is the purpose of the 'ref' attribute?
To reference a DOM or component instance
To define a repeating element in 'v-for'
To store data references for reactivity
To set up a two-way data binding
Next >
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