Writing code for JS and Java

Question

I'm trying to write a module of code which can be used with Javascript for the client side browser and Kotlin for a Java desktop application and Android app.

The main logic manipulates a bitmap/png file.

Is there a way which I can write an interface to be used and have different implementations of the interface for JS and Kotlin?

For example, write a wrapper class for an image (load from image, set pixels, get pixels) in Java (using BufferedImage) and JS (using Canvas)?

I'm new here so if anything doesn't make sense or needs more clarification, please let me know!

See here kotlinlang.org/docs/reference/multiplatform.html

zsmb13
– zsmb13

2018-01-21 11:37:01 +00:00
Commented Jan 21, 2018 at 11:37 — zsmb13
– zsmb13, Commented Jan 21, 2018 at 11:37

T.J. Crowder · Accepted Answer · 2018-01-21 11:59:51Z

1

Yes, it's certainly possible to do that. This answer is a generic Java and JavaScript answer; there may also be a Kotlin-specific approach, see the link in zsmb13's comment. But the generic Java and JavaScript approach would be:

Write your interface around BufferedImage in Java
Write your interface around canvas in JavaScript
Write your manipulation code using that interface in JavaScript
On the browser, your manipulation code would run directly on the browser's JavaScript engine
In the Java app, you'd run your JavaScript code using javax.script to run it in Nashorn (or Rhino on older Java environments).

Whether it's the best solution to your problem is something only you can decide, but yes, you can do it.

edited Jan 21, 2018 at 11:59

answered Jan 21, 2018 at 11:38

T.J. Crowder

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