Last Updated : 13 Feb, 2024
JSX, a syntax extension for JavaScript, allows the creation of user interfaces similar to HTML but within JavaScript. Unlike HTML, JSX enables the embedding of JavaScript expressions and facilitates the creation of reusable components, promoting a more dynamic and efficient approach to web development.
JSX ( JavaScript XML)
JSX stands for JavaScript XML. It is a syntax extension for JavaScript, often used with React to describe what the UI should look like. JSX may remind you of a template language, but it comes with the full power of JavaScript.
Syntax
const element = ( <div> <h1>Hello, world!</h1> <p>This is a JSX element.</p> </div>);
Features of JSX
- Embedding Expressions: JSX allows embedding JavaScript expressions within curly braces, that enable dynamic content rendering.
- Components: JSX supports the creation of reusable components, facilitating modular development and code organization.
- Conditional Rendering: JSX supports conditional rendering through JavaScript expressions, allowing components to render different content based on conditions.
Example: Illustration of JSX code.
Javascript
import React from 'react';
// Pure JSX component
const JSXComponent = () => {
const greeting = 'Hello, JSX!';
return (
<div>
<h1>{greeting}</h1>
<p>This is a pure JSX component.</p>
</div>
);
};
export default JSXComponent;
Output:
HTML ( HyperText Markup Language )
HTML, or HyperText Markup Language, is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
Syntax
<!DOCTYPE html>
<html lang="en"><head>
<meta charset="UTF-8">
<meta name="viewport" content=
"width=device-width, initial-scale=1.0">
<title>Pure HTML Example</title>
</head>
<body>
<div>
<!-- Code -->
</div>
</body>
</html>
Features of HTML
- Semantics: HTML provides semantic tags like
<header>, <nav>, <footer>, etc., which convey the meaning and structure of the content to both developers and browsers. - Forms: HTML provides form elements and attributes for collecting user input, including text inputs, checkboxes, radio buttons, and more, with built-in validation features.
- Multimedia Support: HTML supports embedding multimedia content like images, audio, and video, enabling rich media experiences within web pages.
Example: Illustration of code example of HTML.
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content=
"width=device-width, initial-scale=1.0">
<title>Pure HTML Example</title>
</head>
<body>
<div>
<h1>Hello, HTML!</h1>
<p>This is a pure HTML page.</p>
</div>
</body>
</html>
Output:
Difference between JSX and HTML
The table below illustrates the differences between the JSX and HTML.
| Feature | JSX | HTML |
|---|
| Case Sensitivity | JSX is case-sensitive with camelCase properties. | HTML is not case-sensitive. |
| Logic Integration | JSX allows JavaScript expressions. | HTML does not have logic built-in; it requires a separate script. |
| Node Structure | JSX requires a single root node. | HTML does not have this restriction. |
| Attribute/Property Naming | Attributes are camelcased (e.g., onClick). | Attributes are lowercase (e.g., click). |
| Custom Components | JSX can have custom components (e.g., <MyComponent />). | HTML does not support custom components natively. |
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FAQs
JSX, a syntax extension for JavaScript, allows the creation of user interfaces similar to HTML but within JavaScript.
How is JSX different from HTML? ›
JSX and HTML differ in their integration and usage within web development. HTML is a standard markup language for creating static web pages, while JSX is a syntax extension for JavaScript, mainly used with React, allowing HTML-like code within JavaScript.
What is the difference between HTML and React JS? ›
Functionality: HTML structures content on the web, while React, a JavaScript library, creates dynamic and interactive user interfaces. Component-based: React employs a component-based architecture.
What are the advantages of JSX over HTML? ›
Benefits of Using JSX
JSX enables React to display error and warning messages, which aids in debugging. With JSX, you can write large pieces of code in a more organized and simplified manner. If you have a good understanding of HTML, you'll find it easier to use JSX when developing React applications.
Can I use JSX in HTML? ›
What is JSX? JSX stands for JavaScript XML. JSX allows us to write HTML in React. JSX makes it easier to write and add HTML in React.
What is the disadvantage of JSX? ›
JSX Complexity
However, some developers find JSX daunting due to its unfamiliar syntax, which may slow down the learning process. Despite its initial complexity, JSX offers advantages like improved code readability and component-based structure, fostering a more efficient development workflow.
Can we write HTML in React without JSX? ›
JSX is not a requirement for using React.
So, anything you can do with JSX can also be done with just plain JavaScript.
Why do we use React more than HTML? ›
Interactivity. React allows for seamless interactivity and real-time data updates. By efficiently managing state and utilizing event-driven programming, we can create highly interactive user interfaces and handle dynamic data changes in real-time. HTML has limited interactivity.
Why JS is better than HTML? ›
Main Differences Between JavaScript and HTML
Rendering: HTML is depicted by the browser, while the browser enacts JavaScript. Dynamic Behavior: HTML has no capabilities for creating dynamic behavior, but JavaScript can dynamically change styles, and content, and can also respond to user interactions.
Which is faster React or HTML? ›
However, if you're aiming for highly interactive, dynamic web applications, React is the way to go. Its speed, efficiency, and rich functionality make it the preferred choice for modern web development. In the end, the choice between HTML and React boils down to your specific project goals and your level of expertise.
JSX stands for JavaScript XML, and it is a syntax extension to JavaScript that allows us to write HTML-like code in ReactJS. JSX is not a requirement for using React, but it makes it easier to create and maintain React components.
What is the major difference between JSX and JS? ›
Here are the key differences: Syntax: JSX is a syntax extension for JavaScript that allows you to write HTML-like code within JavaScript. It introduces XML-like tags and attributes to create React elements. JS, on the other hand, is plain JavaScript code without any special syntax or extensions.
What is the use of JSX in React? ›
JSX stands for JavaScript syntax extension. It is a JavaScript extension that allows us to describe React's object tree using a syntax that resembles that of an HTML template. It is just an XML-like extension that allows us to write JavaScript that looks like markup and have it returned from a component.
Is JSX better than HTML? ›
Unlike HTML, JSX enables the embedding of JavaScript expressions and facilitates the creation of reusable components, promoting a more dynamic and efficient approach to web development.
How to change HTML to JSX? ›
When converting HTML to JSX there are five steps you need to apply:
- All prop names follow camelCase.
- Number attributes use curly braces.
- Boolean 'true' can be written with just the property name. ...
- The 'class' attribute is written as 'className'
- In-line styles are provided as objects.
JSX is not natively understood by browsers. Instead, it needs to be converted into valid JavaScript using tools like Babel. This process is known as transpilation, which ensures that browsers can properly interpret and run the JSX code embedded within React applications.
What is the main difference between using JSX and JavaScript? ›
JS is simply a scripting language, adding functionality into your website. JSX is an addition to the JavaScript syntax which is a mixture of both HTML and JavaScript. Both JS and JSX are interchangeable but JSX makes the code easier to understand for users.
What is the key difference between rendering HTML and rendering JSX in a React component? ›
JSX is typically used in React applications, while HTML is used to create web pages. JSX elements are transformed into JavaScript function calls, while HTML elements are rendered as DOM nodes. JSX can be used to create dynamic user interfaces, while HTML is mainly used for static content.
How does React convert JSX to HTML? ›
In a standard React app rendering is a 3-step process:
- JSX is "transpiled" to regular JS functions by a bundler.
- The function calls return objects.
- A special render function converts the object tree to DOM.
HTML injection modifies the structure and content of pages, whereas XSS exploits web application vulnerabilities to run malicious scripts in users' browsers. Recognizing these differences is critical for implementing effective security measures.
