Can one designate something as deprecated in TypeScript?

Currently, I am in the process of creating typescript definitions for a JavaScript API that includes a deprecated method. The documentation mentions that the API is solely for compatibility purposes and has no effect:

This API has no effect. It has been maintained for compatibility purpose.

Despite it being deprecated, I still want to include the method in the definitions file for compatibility reasons. However, I also want to indicate that it is no longer recommended for use.

Although my immediate concern is regarding deprecation within a definitions file, I am also interested in utilizing this feature in other areas of my code. Therefore, my primary question is: How can I designate something as deprecated in typescript?

typescriptdeprecateddeprecation-warningtypescript-definitions

Answer №1

To indicate code that should not be used, you can utilize JSDoc comments like this:

/**
 * @deprecated Do not use this method anymore
 */
export const oldFunc = () => {}

For ESLint to detect and warn about deprecated methods, you can use the plugin-deprecation.

VSCode has also added support for the deprecated tag.

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