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Vue.js Component Basics Quiz

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Question 1/15

What is a Vue component's 'name' option used for?

Select your answer

To declare the component's methods.

To specify styles for the component.

To define the component's data properties.

To provide an identifier for the component for debugging purposes.

Question 2/15

How would you register a component globally in Vue?

Vue.component('my-component', {
  template: '<div>A custom component!</div>'
});

Select your answer

Using 'Vue.component'.

Using 'register'.

Using 'Vue.directives'.

Using 'Vue.create'.

Question 3/15

Which directive would you use to conditionally render a piece of element?

Select your answer

v-if

v-show

v-on

v-for

Question 4/15

How does Vue handle directives that are prefixed with 'v-'?

Select your answer

They are special attributes with specific functionality.

They are ignored by Vue.

They are treated as custom elements.

They are unchangeable classes.

Question 5/15

How can you centrally manage your application's state in Vue.js?

Select your answer

Using Vuex.

Using the 'data' function.

Using Vue Components.

Using Vue Router.

Question 6/15

How do you conditionally apply CSS classes in Vue?

<!-- Vue template -->
<div :class="{ active: isActive, 'text-danger': hasError }"></div>

Select your answer

Using 'v-on'.

Using ':class'.

Using 'v-for'.

Using 'v-if'.

Question 7/15

What does the 'transition' element do in Vue.js?

<transition name="fade">
  <p v-if="show">Hello</p>
</transition>

Select your answer

It provides state management.

It initializes Vue Router.

It manages CSS transitions/animations for components.

It creates an asynchronous component.

Question 8/15

What attribute is used to ensure keys are unique in lists rendered with 'v-for'?

<li v-for="item in items" :key="item.id">{{ item.name }}</li>

Select your answer

:ref

:id

:key

:class

Question 9/15

How do you create a dynamic component in Vue?

<!-- Vue template -->
<component :is="currentComponent"></component>

Select your answer

Using ''.

Using 'v-for'.

Using 'v-if'.

Using 'v-show'.

Question 10/15

How do you loop through an array in a Vue template?

<!-- Vue template -->
<ul>
  <li v-for="item in items" :key="item.id">{{ item.name }}</li>
</ul>

Select your answer

Using 'v-bind'.

Using 'v-on'.

Using 'v-for'.

Using 'v-show'.

Question 11/15

Which directive is used for conditional rendering in Vue.js?

Select your answer

v-if

v-on

v-for

v-show

Question 12/15

Which directive would you use to two-way bind a data property to an input element?

<!-- Vue template -->
<input v-model="username" />

Select your answer

v-model

v-if

v-on

v-bind

Question 13/15

What is a Vuex store used for in a Vue.js application?

Select your answer

Managing global state across components.

Defining custom directives.

Storing individual component states.

Adding new components dynamically.

Question 14/15

How do you bind a JavaScript variable to an HTML element in a Vue template?

Select your answer

Using the 'v-bind' directive.

Using the double curly braces ({{ }}).

Using the 'v-model' directive.

Using the 'v-for' directive.

Question 15/15

What is a scoped slot in Vue?

<template #default="slotProps">
  <span>{{ slotProps.text }}</span>
</template>

Select your answer

A slot used for handling events.

A slot that cannot be overridden.

A slot that has access to data passed from the child component.

A slot that styles differently depending on its parent.

Your Results

You did not answer any questions correctly.

Your Answers

Question 1/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is a Vue component's 'name' option used for?

Available answers

To declare the component's methods.

To specify styles for the component.

To define the component's data properties.

To provide an identifier for the component for debugging purposes.

The 'name' option in a Vue component provides an identifier primarily used for debugging and in tools like Vue DevTools. It also helps with recursive components.

Question 2/15

😊 Your answer was correct 🙁 Your answer was incorrect

How would you register a component globally in Vue?

Vue.component('my-component', {
  template: '<div>A custom component!</div>'
});

Available answers

Using 'Vue.component'.

Using 'register'.

Using 'Vue.directives'.

Using 'Vue.create'.

To register a component globally in Vue, use 'Vue.component()', passing the component's name and its options. This makes the component available throughout the entire application.

Question 3/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which directive would you use to conditionally render a piece of element?

Available answers

v-if

v-show

v-on

v-for

The 'v-if' directive is used for conditionally rendering elements. When the condition is false, the element and its children are not rendered.

Question 4/15

😊 Your answer was correct 🙁 Your answer was incorrect

How does Vue handle directives that are prefixed with 'v-'?

Available answers

They are special attributes with specific functionality.

They are ignored by Vue.

They are treated as custom elements.

They are unchangeable classes.

In Vue.js, directives prefixed with 'v-' are special attributes that apply reactive behavior to the DOM. Examples include 'v-if', 'v-for', and 'v-bind'.

Question 5/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you centrally manage your application's state in Vue.js?

Available answers

Using Vuex.

Using the 'data' function.

Using Vue Components.

Using Vue Router.

In Vue.js, the centralized state management can be achieved using Vuex, which is an official state management pattern + library for Vue.js applications.

Question 6/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you conditionally apply CSS classes in Vue?

<!-- Vue template -->
<div :class="{ active: isActive, 'text-danger': hasError }"></div>

Available answers

Using 'v-on'.

Using ':class'.

Using 'v-for'.

Using 'v-if'.

To conditionally apply CSS classes in Vue, you can use the ':class' binding. The provided code snippet shows how to apply 'active' and 'text-danger' classes based on the 'isActive' and 'hasError' conditions.

Question 7/15

😊 Your answer was correct 🙁 Your answer was incorrect

What does the 'transition' element do in Vue.js?

<transition name="fade">
  <p v-if="show">Hello</p>
</transition>

Available answers

It provides state management.

It initializes Vue Router.

It manages CSS transitions/animations for components.

It creates an asynchronous component.

The 'transition' element in Vue.js is used to apply CSS transitions and animations to elements entering or leaving the DOM. The provided snippet wraps a transitioning paragraph with the 'fade' transition.

Question 8/15

😊 Your answer was correct 🙁 Your answer was incorrect

What attribute is used to ensure keys are unique in lists rendered with 'v-for'?

<li v-for="item in items" :key="item.id">{{ item.name }}</li>

Available answers

:ref

:id

:key

:class

The ':key' attribute is used in Vue.js with 'v-for' directives to ensure that items have a unique identity. This helps Vue to optimize rendering by detecting changes.

Question 9/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you create a dynamic component in Vue?

<!-- Vue template -->
<component :is="currentComponent"></component>

Available answers

Using '<component :is="">'.

Using 'v-for'.

Using 'v-if'.

Using 'v-show'.

Dynamic components in Vue are created with the '' syntax. The 'is' attribute determines which component to render, allowing for dynamic rendering based on changing data.

Question 10/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you loop through an array in a Vue template?

<!-- Vue template -->
<ul>
  <li v-for="item in items" :key="item.id">{{ item.name }}</li>
</ul>

Available answers

Using 'v-bind'.

Using 'v-on'.

Using 'v-for'.

Using 'v-show'.

The 'v-for' directive in Vue is used to render a list of items by iterating over an array. The code snippet shows how to loop through 'items' and render each 'item'.

Question 11/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which directive is used for conditional rendering in Vue.js?

Available answers

v-if

v-on

v-for

v-show

The 'v-if' directive in Vue.js is used to conditionally render elements. It renders an element based on a boolean expression's truthiness.

Question 12/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which directive would you use to two-way bind a data property to an input element?

<!-- Vue template -->
<input v-model="username" />

Available answers

v-model

v-if

v-on

v-bind

The 'v-model' directive in Vue creates a two-way data binding on form input, textarea, and select elements. The code snippet shows using 'v-model' to bind the 'username' property to an input element.

Question 13/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is a Vuex store used for in a Vue.js application?

Available answers

Managing global state across components.

Defining custom directives.

Storing individual component states.

Adding new components dynamically.

A Vuex store is a centralized state management solution for Vue.js applications. It allows for managing the global state across components to keep data in sync and consistent.

Question 14/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you bind a JavaScript variable to an HTML element in a Vue template?

Available answers

Using the 'v-bind' directive.

Using the double curly braces ({{ }}).

Using the 'v-model' directive.

Using the 'v-for' directive.

In Vue templates, you use the double curly braces ({{ }}) to bind JavaScript expressions to HTML elements. This is known as interpolation.

Question 15/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is a scoped slot in Vue?

<template #default="slotProps">
  <span>{{ slotProps.text }}</span>
</template>

Available answers

A slot used for handling events.

A slot that cannot be overridden.

A slot that has access to data passed from the child component.

A slot that styles differently depending on its parent.

A scoped slot is a Vue slot that allows you to pass data from the child component back to the parent using the 'slot-scope' or newer shorthand syntax ('#'). The provided code snippet is an example where 'slotProps.text' is used.