Extending jQuery using Scala.js is done by extending the famous jQuery $ symbol. We can create a file named Notify.scala in the io.fscala.shopping.client package, in the client project.
In this file, we can first define the extension with the following piece of code:
@js.native
@JSGlobal("$")
object NotifyJS extends js.Object {
def notify(msg: String, option: Options): String = js.native
}
An object named NotifyJS is defined, extending the Scala.js object named js.Object. It is necessary to inform the compiler that we are creating a facade of an existing JavaScript library.
The first annotation is @js.native; this annotation tells the compiler that the implementation is completely done in JavaScript. The second annotation ...
