Vue.js Built-in Components : Suspense

Vue.js Built-in Components : Suspense

Vue.js, a popular JavaScript framework, provides developers with a wide range of built-in components that can greatly enhance the performance and user experience of web applications. One such component is Suspense, which allows developers to control the rendering and loading of asynchronous components or suspense-enabled transitions.

Suspense is particularly useful when working with components that have expensive or time-consuming rendering processes, such as fetching data from an API or loading large images. By incorporating Suspense into these components, developers can achieve a smoother and more responsive user interface by delaying the rendering until the necessary data or resources are available.

Developers can specify a fallback component to be displayed while the suspense-enabled component is loading. This can be a simple loading spinner or a more complex loading screen, depending on the application’s design requirements. With Suspense, users no longer see partial or incomplete content, ensuring a more polished and professional user experience.

In addition to improving performance, Suspense also provides a cleaner and more streamlined code structure. Rather than having to handle loading states and display logic within individual components, Suspense centralizes the management of these asynchronous operations, making it easier to understand and maintain the codebase.

Overall, Vue.js Suspense is a powerful built-in component that can greatly enhance the performance and user experience of web applications. By leveraging Suspense, developers can optimize the loading and rendering of asynchronous components or suspense-enabled transitions, resulting in faster and more efficient web applications that provide a seamless and enjoyable user experience.

Table of Contents

Vue.js Built-in Components Explained


Vue.js is a popular JavaScript framework that allows developers to build user interfaces. It comes with a set of built-in components that can be used to create interactive and dynamic web applications. These components are designed to be modular and reusable, making it easy to build complex UIs with Vue.js.

List of Built-in Components

Vue.js provides a wide range of built-in components that cover various aspects of a web application. Some of the most commonly used built-in components are:

  • v-bind: This component allows you to dynamically bind data to HTML attributes.
  • v-if: This component is used to conditionally render elements based on a condition.
  • v-for: This component is used to iterate over a list of items and render them dynamically.
  • v-on: This component is used to listen to events and run methods.
  • v-model: This component is used for two-way data binding between form inputs and Vue.js models.
  • v-show: This component is similar to v-if but uses CSS styles to control the visibility of an element.
  • v-text: This component is used to output raw text.
  • v-html: This component is used to output HTML.
  • v-slot: This component is used to define named slots inside a component.

Benefits of Built-in Components

The built-in components provided by Vue.js offer several benefits:

  1. Reusability: The components can be used across multiple Vue.js applications, making it easy to reuse code and improve productivity.
  2. Performance: The built-in components are optimized for performance, allowing for faster rendering and improved user experience.
  3. Maintainability: Using built-in components promotes modular and organized code, making it easier to maintain and debug the application.
  4. Flexibility: The components can be customized and extended based on the specific needs of the application, providing flexibility and adaptability.



Vue.js built-in components provide a powerful set of features that can be leveraged to build modern and interactive web applications. By understanding the different built-in components and their functionality, developers can make the most of Vue.js and create engaging user interfaces.

Vue.js Suspense Component Overview

The Vue.js Suspense component is a built-in feature that allows you to handle async components in a more flexible and user-friendly way. It enables you to define a loading state while the content is being fetched, and also handles errors during the loading process.

How Suspense Works

The Suspense component wraps around a dynamic component that has a delay in rendering. When the dynamic component is being fetched, the Suspense component takes over and displays a fallback loading state. Once the dynamic component is loaded, it replaces the loading state and displays the content.

If an error occurs during the loading process, the Suspense component can also display an error state, allowing you to handle errors gracefully.

Using Suspense Component

To use the Vue.js Suspense component, you need to define the fallback and error slots within the Suspense component. The fallback slot is displayed while the content is being fetched, and the error slot is displayed if an error occurs during the loading process.

Here’s an example of how to use the Suspense component:



<template v-slot:fallback>



<template v-slot:error>

<p>An error occurred while loading the component.






import AsyncComponent from './AsyncComponent.vue';

export default {

components: {





In the above example, the `