jsinterop.annotations

Annotation Type JsAsync

@Retention(value=RUNTIME)
 @Target(value=METHOD)
 @Documented
public @interface JsAsync

JsAsync marks a method to be transpiled to an async JavaScript method.

Adding this annotation to a method adds an async keyword to the generated JavaScript function.

There are some limitations apply on JsAsync to make the annotation practical:

• A @JsAsync method return type should be IThenable or Promise.
• A @JsAsync method should not return null.

This is an EXPERIMENTAL annotation and only works in J2CL.