Java nashorn比较java对象是否属于某种java类型

Question

I am using instanceof but it is currently not working as I expect it. I have a variable I retrieve from my java code inside my script. Let's call this variable myObject which is the instance of a MyObject class, as you would expect.

if (myObject instanceof Java.type("MyObject")) {
    //The check doesn't pass; the code here doesn't execute
}

I could only find vague information on the net about this. What is the definite way of checking if myObject is an instance of the MyObject class as I would easily do in Java?

Thanks!

Answer 1

What you have should work, (with fully qualified class names, of course). Eg this definitely works:

jjs> var x = new java.util.BitSet()
jjs> x instanceof Java.type("java.util.BitSet") 
true

Note: java.util.BitSet and Java.type("java.util.BitSet") are interchangeable, I just used both to illustrate that no matter how you construct the object, the result should be the same.