human
I am working on the file "00 Javascript In Notebooks.ipynb".
The first task is:
A lower-level approach is to implement a _repr_javascript_() object method that returns Javascript.  This lets you add Javascript rendering to any object:
Can you write Python program for it?
 ... Write me a the Python program you requested?
assistant
#Here is the Python program you requested.

class HelloWorld():
    def _repr_javascript_(self):
        return "element.append('HelloWorld class');"
    
hw = HelloWorld()
hw