@cmdcolin having your module declared is necessary when using typescript and having noImplicitAny turned on in the ts.config. One possible cause of this is: you used import The same principle applies in coding with the help of Namespace. Why does awk -F work for most letters, but not for the letter "t"? TypeScript supports two methods to organize code: namespaces and modules, but namespaces are disallowed. What am I doing wrong? Namespaces are simply named JavaScript objects in the global namespace. Unlike modules, they can span multiple files, and can be concatenated using outFile . [Solved] how to pull specific repo for rebuilding android images. Affordable solution to train a team and make them project ready. Just as there is a one-to-one correspondence between JS files and modules, TypeScript has a one-to-one correspondence between module source files and their emitted JS files. Steps: Create new MAUI Blazor app (.net 7) Add NuGet-Package "Microsoft.TypeScript.MSBuild". When we use the never as a return type of function, the function should contain any condition which never allows the function to return a value. Our test code is otherwise unchanged. The most common case on any implicit any is in a variable declaration, such as let value;. For the TypeScript compiler to see this shape, we use an ambient namespace declaration. Unlike modules, they can span multiple files, and can be concatenated using outFile. Actual behavior: error TS2709: Cannot use namespace 'Foo' as a type. Can a graphene aerogel filled balloon under partial vacuum achieve some kind of buoyance? We can declare the namespace as below. The never is also one of type in TypeScript like other data types such as string, number, boolean, symbol, etc. From the above article, we saw the rule for writing the code in TypeScript. The never is also one of type in TypeScript like other data types such as string, number, boolean, symbol, etc. Explain the Stroke Type property of 2D shapes in JavaFX. This error can occur when you try to import types declared as a module. See the Namespaces documentation for more information about TypeScript namespaces. Are you experiencing the "cannot use namespace as a type" error in TypeScript? Users can use the never type when they are sure about any situation that will never occur.