Javascript _movie.label is not a function.

Question

Ok, am I taking crazy pills? According to the documentation
_movie.label is a method that should return a frame number, however
when I do:
x = _movie.label("Start");
When there is clearly a marker called start, I get
Script error: TypeError _movie.label is not a function.
Not even a function?! I'm totally perplexed and disturbed. Is
Javascript just not implemented like the documentation says?

Answer 1

The anonymous function isn't such an issue if one breaks it
out to a named function. I suspect the debugger is having issues
resolving/locating the function. So if you define a method function
and cast it to a class's method, the breakpoint is able to be
located:
function myClass(){
this.myMethod = namedFunction;
function namedFunction(){
trace("Hello World");
The drawback of this is that it pollutes the global
namespace, namedFunction is callable from outside the class
definition and or becomes a risk of being overwritten. Following a
convention of perhaps the classname followed by an underscore and
then method name in lieu of 'namedFunction', i.e.
myClass_helloWorld might be a better way to ensure unique method
names, but again, one only needs to do this to get
debugging/breakpoints working. I prefer the anonymous function
style as it works better with an external editor's code
folding/collapse (i.e. I like to use NetBeans as my editor for
Javascript).