TypeScript is an open source programming language developed by Microsoft. It is a superset of JavaScript, supports the latest ECMAScript standards, and provides more features such as classes, interfaces, and generics, making coding more standardized, efficient, and maintainable.
Here are the steps to use TypeScript:
- Install TypeScript
TypeScript can be installed via npm or yarn:
npm install typescript --save-dev or
yarn add typescript --dev - Initialize the TypeScript configuration file
Create a file in the project root directory tsconfig.json , which can be generated using the following command:
npx tsc --init This command will generate a default tsconfig.json file, which you can modify according to your needs.
- Use TypeScript
Change the file extension of your JavaScript code to .ts, and you're ready to use TypeScript. You can use TypeScript syntax to code in the file, such as using type annotations, interfaces, and so on.
- Compile TypeScript
TypeScript files need to be compiled into JavaScript files to run in a browser or Node.js environment. It can be compiled with the following command:
npx tsc yourfile.ts This command will compile yourfile.ts the file and generate a JavaScript file with the same name yourfile.js.
You can also tsconfig.json configure compilation options in the file, and then use the following command to compile:
npx tsc This command will tsconfig.json compile as configured in .
- Integrate TypeScript into development tools
Different development tools have different methods to integrate TypeScript. For example, VS Code can use the officially provided TypeScript plug-in to support TypeScript. After installing the plug-in, you will get syntax highlighting, automatic prompting, type checking and other functions, so that you can perform TypeScript programming more efficiently.
Through the above steps, you can start programming with TypeScript.