A namespace can include interfaces, classes, functions and variables to support a single or a group of related functionalities. You signed in with another tab or window. Even setting module none in the tsconfig file, did not help. TypeScript is a superset developed and maintained by Microsoft.It is a strict syntactical superset of JavaScript and adds optional static typing to the language. A TypeScript module can say export default myFunction to export just one thing. Using Namespaces. Here is an example from the underscore declaration file from Conversely, the variables lettersRegexp and numberRegexp are implementation details, so they are left unexported and will not be visible to code outside the namespace. First of all, notice how we have used the same Types namespace in all these files. Unlike modules, they can span multiple files, and can be concatenated using --outFile. This results in the error Cannot find name 'A'. cannot - typescript namespace multiple files . i think what you are looking for is an internal modifier, see #321. mhegazy closed this on Feb 1, 2016 mhegazy added the Question label on Feb 1, … Rup Rup. Already on GitHub? Lastly, we learn how to compile multiple TypeScript files into a single Javascript file. Namespaces can be a good way to structure your code in a Web Application, with all dependencies included as