Question

I stumbled upon code like this

if (options.callback) 
    { options.callback; }

This can’t be right, correct? Options is some object with an attribute titled ‘callback’, now to execute callback it would require a options.callback(); Or is there some way to perform the callback if it is an object’s attribute somehow?

If the code above is correct, what should I add in the callback property to make it execute?

Answer 1

It must be a bug, since it doesn’t do anything useful.

The only way it could do anything was if callback was a getter, but then it would be called twice and that doesn’t make any sense either.