JSX in Vue components - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is JSX in the context of Vue components?

JSX is a syntax that lets you write HTML-like code inside JavaScript. In Vue, it allows you to create component templates using JavaScript expressions instead of separate template files.

intermediate

How do you enable JSX support in a Vue 3 project?

You install the @vitejs/plugin-vue-jsx plugin (for Vite) or @vue/babel-plugin-jsx (for Babel) and configure your build tool to use it. This lets Vue understand JSX syntax in your components.

beginner

Show a simple Vue 3 functional component using JSX that renders a button with a click event.

const MyButton = () => {
  return <button onClick={() => alert('Clicked!')}>Click me</button>;
};

This component returns a button element with an onClick event handler using JSX.

beginner

How do you bind dynamic data in JSX inside Vue components?

You use curly braces {} to embed JavaScript expressions. For example,

{message}

will display the value of the message variable inside the div.

intermediate

What is a key difference between Vue templates and JSX in Vue components?

Vue templates use HTML-like syntax with directives (like v-if), while JSX uses JavaScript expressions and functions directly. JSX offers more flexibility but requires understanding JavaScript well.

Which plugin is commonly used to enable JSX in a Vue 3 project with Vite?

A @vue/babel-plugin-jsx

B vue-template-compiler

C vue-loader

D @vitejs/plugin-vue-jsx

The @vitejs/plugin-vue-jsx plugin is designed for Vite to support JSX in Vue 3 projects.

In JSX for Vue, how do you attach a click event to a button?

A <button onClick={handleClick}>

B <button v-on:click={handleClick}>

C <button @click='handleClick'>

D <button click={handleClick}>

In JSX, event handlers use camelCase like onClick with a JavaScript function.

How do you insert a JavaScript variable called 'title' inside JSX?

A <div>{title}</div>

B <div>title</div>

C <div>{{title}}</div>

D <div>$(title)</div>

JSX uses curly braces {} to embed JavaScript expressions inside the markup.

Which of the following is true about JSX in Vue components?

A JSX is the default template syntax in Vue 3.

B JSX replaces the need for JavaScript in Vue components.

C JSX allows writing templates using JavaScript expressions.

D JSX cannot handle events in Vue.

JSX lets you write templates as JavaScript expressions, offering flexibility.

What is a benefit of using JSX over Vue templates?

A Easier for beginners to read and write.

B More flexibility with JavaScript logic inside templates.

C No need to configure build tools.

D Better SEO by default.

JSX allows embedding full JavaScript logic directly, giving more control.

Explain how JSX works inside Vue components and how it differs from Vue templates.

Think about how you write the UI and logic in each approach.

Describe the steps to set up JSX support in a Vue 3 project using Vite.

Focus on the plugin installation and configuration.