11. Can web browsers read JSX/TSX directly?

Web browsers cannot directly read or interpret JSX (JavaScript XML) or TSX (TypeScript XML). JSX and TSX are syntactic extensions of JavaScript and TypeScript that allow writing HTML-like code directly in JavaScript/TypeScript files. They are commonly used in libraries and frameworks like React to define components.

For browsers to understand and execute JSX/TSX code, it must be processed by build tools such as Babel (for JSX) or the TypeScript Compiler (for TSX). These tools convert JSX/TSX code into standard JavaScript that browsers can interpret and execute.

Example of the conversion process:

1. Source JSX code:

const element = <h1>Hello, world!</h1>;

2. After processing with Babel:

const element = React.createElement('h1', null, 'Hello, world!');

Similarly, TSX code must be processed by the TypeScript Compiler to transform types and JSX syntax into plain JavaScript.

In summary, web browsers cannot directly read JSX/TSX. Instead, the code must be processed and converted into standard JavaScript before it can be loaded by the browser.