Summary  
This chapter explains the ES Module `import` syntax, showing how to load default exports, named exports, and combine both forms in a single top-level statement for clear, modular code dependencies.  

General domain of usage  
JavaScript module organization in Node.js applications.

When using ES Modules in Node.js, you use the `import` statement to bring in functions, objects, or values from other modules. The `import` statement supports several variations depending on how the module exports its content.

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- If a module uses `export default`, you can import the default export by giving it any name you choose, as shown by `import PI from './mathUtils.js'`; 
- For named exports, you use curly braces and specify the exact names, such as `import { add, subtract } from './mathUtils.js'`;
- You can also combine both forms in a single statement: `import PI, { add, subtract } from './mathUtils.js'`. This is called **destructuring imports**, and it allows you to select only the exports you need from a module. 

The `import` statement must always be at the top level of your file and cannot be used conditionally or inside functions. This syntax helps you write modular, maintainable code that clearly lists dependencies at the beginning of each module.

Which of the following correctly imports both the default export and a named export from a module called 'tools.js'?

Master the modular structure that powers every Node.js project. Work with CommonJS and ES modules, explore Node's core utilities for file and system operations, and manage external dependencies through npm. Build a clear understanding of how modular code, system tools, and packages connect to create efficient, maintainable Node.js applications.

Understand how Node.js organizes code through its modular architecture. Explore how modules are loaded, shared, and managed using the CommonJS system, and apply exporting, importing, and path resolution techniques to structure scalable projects.

Move beyond CommonJS by adopting modern ES module syntax and combining it with Node's built-in capabilities. Work with the fs, path, and other core modules to manage files, directories, and system operations while maintaining clean, modular code.

Integrate system utilities and external dependencies to extend application functionality. Access system information through the os module and manage third-party libraries using npm for efficient package installation, updates, and dependency control.

Importing with import

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Importing with import