Huh, interesting. The code supplied is: try { return true; } finally { return false; } Which returns false. I guess this is because of the guarantee that the

Huh, interesting. The code supplied is: try { return true; } finally { return false; } Which returns false. I guess this is because of the guarantee that the finally block will be run, no matter what. The JS interpreter must be catching the return and holding it pending the execution of the finally block. Checking with try { return true; } finally { alert('hi'); } Shows this to be true. (It both returns true AND alerts 'hi'.)