How to generate “*.d.ts” in TypeScript?

Question

How to generate “*.d.ts” in typescript or creates and import @types? Is there any way to create d.ts for jquery plugin or plain javascript library?

Answer 1

If you want to create the declaration file only, without producing other .js files, you can run the compiler with the emitDeclarationOnly option

tsc --emitDeclarationOnly

Here is a full list of available compiler options.

Answer 2

For your own code, this can be done with a compiler option:

tsc --sourceMap=true

This can also be added to your tsconfig file, as well as MSBuild task.

For jQuery, most of those libraries are on DefinitelyTyped, where you can install them via @types/LIBRARY_NAME.

For other third party libraries, you may have to create them yourself; otherwise, you can allow JavaScript with another compiler option:

tsc --allowJs=true

Then depending on your loading tool, you can use require or some other mechanism to import.

Answer 3

File .d.ts is a declaration file.For details see.

To create .d.ts from a ts file.You only need to add the -d or --declaration parameter during compile using tsc.

Example:

tsc -d your_ts_file.ts