f1e668d3bf88c88560dd2b40c6db8ea9500f9dc6,bokeh/model.py,Model,js_on_change,#Model#Any#,477

Before Change

        if not all(isinstance(x, CustomJS) for x in callbacks):
            raise ValueError("not all callback values are CustomJS instances")

        if event in self.properties():
            event = "change:%s" % event

        old = {k: [cb for cb in cbs] for k, cbs in self.js_property_callbacks.items()}
        if event not in self.js_property_callbacks:
            self.js_property_callbacks[event] = []
        for callback in callbacks:

After Change

        if not all(isinstance(x, CustomJS) for x in callbacks):
            raise ValueError("not all callback values are CustomJS instances")

        descriptor = self.lookup(event, raises=False)
        if descriptor is not None:
            event = f"change:{descriptor.name}"

        old = {k: [cb for cb in cbs] for k, cbs in self.js_property_callbacks.items()}

Instances