jQuery split problem

I have a script, which returns value as an object. It can return text or numbers, like 'hello, goodbye' or '500, 900'.

When I try to use split() with this object, I catch an error:

TypeError: Object 'hello, goodbye' has no method 'split'

But I want to use split. What开发者_开发技巧 can I do?

Seems the only way to convert this object into a string, how to do that?

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does a = a+''; a.split('') work? that should convert the object to string before split is called.