What is the difference between .ts and .tsx extensions in TypeScript?

In TypeScript, the primary difference between .ts and .tsx file extensions lies in their support for JSX syntax, which is a syntax extension for JavaScript commonly used with React to describe what the UI should look like. Here's a detailed explanation:

• .ts File Extension: This extension is used for files that contain standard TypeScript code. These files can include definitions for variables, functions, classes, interfaces, and other typescript-specific syntax. However, .ts files do not support JSX syntax. They are ideal for writing pure TypeScript code that doesn't involve JSX, such as utility functions, business logic, data models, type definitions, and interfaces. The .ts extension signifies that the file is a TypeScript file and helps in organizing the codebase by separating TypeScript code from JSX code[1][2][3][4].

• .tsx File Extension: The .tsx extension is specifically used for TypeScript files that contain JSX syntax. JSX allows embedding HTML-like syntax directly within TypeScript code, which is particularly useful when developing React components. This extension enables developers to write their components with the full expressiveness of JSX, making it easier to define UI components in a declarative style. .tsx files are necessary whenever you define a React component that utilizes JSX, allowing for the integration of JSX syntax directly within TypeScript code for building expressive and type-safe user interfaces[1][2][3][4].

The introduction of the .tsx extension was partly due to historical reasons. Initially, TypeScript did not support JSX syntax, and the .tsx extension was introduced in T...