**Course Title:** Mastering TypeScript: From Basics to Advanced Applications **Section Title:** TypeScript with Angular **Topic:** Setting up an Angular project with TypeScript In this topic, we will explore how to set up an Angular project with TypeScript, focusing on the key concepts, tools, and configurations required to get started. **Why Use Angular with TypeScript?** Angular is a popular JavaScript framework for building single-page applications, and when combined with TypeScript, it provides a robust and maintainable solution for large-scale applications. TypeScript brings additional benefits, including: * **Improved Code Completion**: With TypeScript, you get better code completion, and your code editor can provide more accurate suggestions. * **Identify Errors Early**: TypeScript's type checking helps identify and fix errors earlier in the development cycle, reducing the likelihood of runtime errors. * **Scalability**: TypeScript's optional static typing and other features make it well-suited for complex, large-scale applications. **Prerequisites** To follow along with this topic, you should have a good understanding of: * JavaScript and its ecosystem * TypeScript basics (covered in previous topics) * Angular fundamentals (we'll discuss the basics here, but prior knowledge will be helpful) **Setting Up an Angular Project with TypeScript** To set up an Angular project with TypeScript, you'll need to install the following tools and dependencies: * **Node.js** (https://nodejs.org/en/download/) * **npm** (comes bundled with Node.js) or **yarn** (https://classic.yarnpkg.com/en/docs/install) * **Angular CLI** (https://angular.io/guide/setup-local) * **TypeScript** (we'll install it as part of the project setup) Let's create a new Angular project with TypeScript: ```bash npm install -g @angular/cli ng new my-angular-project --language=TypeScript ``` In the `ng new` command: * `my-angular-project` is the name of your project. * `--language=TypeScript` specifies that we want to use TypeScript. This sets up a new Angular project with TypeScript and adds the required TypeScript dependencies. **Key Project Folders and Files** Here's a brief overview of the key folders and files in an Angular project: * `src/app/`: The main application folder, containing components, services, and modules. * `src/app/app.module.ts`: The application's main module, responsible for defining dependencies and declaring components. * `src/app/app.component.ts`: The application's main component, which serves as the root component. * `src/index.html`: The application's main HTML file, which serves as the entry point. * `src/main.ts`: The application's main entry point, which bootstraps the application. * `tsconfig.json`: The TypeScript configuration file, which defines compiler options. * `angular.json`: The Angular project configuration file, which defines build, serve, and test options. **Configuring the TypeScript Compiler** The `tsconfig.json` file defines the TypeScript compiler options. By default, Angular projects come with a `tsconfig.json` file pre-configured for TypeScript compilation. You can customize the compiler options to suit your needs. Here's a sample `tsconfig.json` file: ```json { "compilerOptions": { "target": "es2015", "module": "commonjs", "strict": true, "esModuleInterop": true, "outDir": "./dist/out-tsc", "allowSyntheticDefaultImports": true } } ``` **Conclusion** In this topic, we explored how to set up an Angular project with TypeScript, covering the key tools, dependencies, and configurations required to get started. You now have a solid foundation for building scalable and maintainable Angular applications using TypeScript. **What's Next?** In the next topic, we'll dive deeper into creating components, services, and modules in Angular. If you need help or have questions, feel free to leave a comment below. Before moving on, make sure to: * Review the Angular documentation for a deeper understanding of the framework (https://angular.io/docs). * Familiarize yourself with the structure and configuration of an Angular project. * Experiment with building simple Angular applications to solidify your understanding.