jQuery find word in JSON object

I'm trying to determine when or not a JSON object contains the word "cinema".

It is accessible through "obj.message" so the check would be something like:

Pseudo-code - if (obj.message contains "cinema") display it

Is it possible to find text within a JSON object?

Thanks

alert(obj.message.indexOf("cinema") != -1);

Is obj.message itself an object? If so, the word is "in": if ("cinema" in obj.message)... . Or is obj.message an string? Then it's indexOf, as Jacek_FH wrote.

if(obj.message.match(/cinema/))

would that work?