It is called JSX, and it is a syntax extension to JavaScript. We recommend using it 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.

JSX is an extension of the JavaScript language based on ES6, and is translated into regular JavaScript at runtime. With JSX you can write expressions inside curly braces { }. The expression can be a React variable, or property, or any other valid JavaScript expression. JSX will execute the expression and return the result:

JSX (sometimes referred to as JavaScript XML) is an XML-like extension to the JavaScript language syntax. [1] Initially created by Facebook for use with React, JSX has been adopted by multiple web frameworks.

2020年10月13日 · .jsx (JavaScript + JSX): .jsx files are essentially the same as .js files but are explicitly named with the .jsx extension to indicate the usage of JSX syntax for defining React components. JSX allows you to write HTML-like code within your JavaScript components, making it easier to define the structure of your UI elements.

2022年10月24日 · JSX 在语法上看起来与HTML 相近，但它其实是JavaScript 的语法扩展。 它的特点是，UI 与JavaScript 逻辑的相融- 组合成元件。 虽然React 官方没有强制要求使用JSX 来开发React ，但使用上来说，大多数人觉得对开发体验比较好，它也可以让React 显示一些错误和提示 …

JSX is a syntax extension for JavaScript that lets you write HTML-like markup inside a JavaScript file. Although there are other ways to write components, most React developers prefer the conciseness of JSX, and most codebases use it.

2021年2月1日 · What is a JSX expression and what we can write inside it; Common issues in JSX ; And much more. So let's get started. What is JSX? JSX is a JavaScript Extension Syntax used in React to easily write HTML and JavaScript together. Take a look at the below code: const jsx = < h1 > This is JSX </ h1 > This is simple JSX code in React.

2025年2月20日 · JSX allows you to write HTML-like code directly inside JavaScript. JSX looks like regular HTML, it’s actually a syntax extension for JavaScript. JSX combines HTML and JavaScript in a single syntax, allowing you to create UI components in React. It simplifies rendering dynamic content by embedding JavaScript expressions inside HTML-like tags.

2017年5月21日 · JSX stands for JavaScript XML. With React, it's an extension for XML-like code for elements and components. Per the React docs and as you mentioned: JSX is a XML-like syntax extension to ECMAScript without any defined semantics.

2024年8月30日 · JSX is one of the core concepts of React. Understanding it well allows you to write better React code. In this comprehensive guide, we‘ll explore: What is JSX? JSX stands for JavaScript XML. It allows us to write HTML-like syntax directly within our React components. Here is a simple example: This code looks like HTML, but it‘s not.