Organizing TypeScript code using namespaces

Namespaces in TypeScript are a method of organizing code to prevent naming conflicts by grouping variables, functions, interfaces, or classes within a local scope, thereby reducing global namespace pollution, especially in applications relying on third-party libraries. While modules offer strong code isolation and are preferred in Node.js applications, namespaces are beneficial for simple implementations and legacy codebases. TypeScript distinguishes itself from JavaScript, which lacks native namespace support, by allowing namespaces to be defined using the `namespace` keyword, enabling multiple namespaces within a single file, and facilitating nested or multi-file namespaces with the help of the `export` and `import` keywords. Developers can use namespace aliases for deeply nested namespaces and utilize the TypeScript compiler to combine multi-file namespaces into a single JavaScript file. Understanding and effectively using namespaces can enhance the organization and scalability of TypeScript applications, making them more robust against naming collisions and easier to maintain.