OK, now I know why not to use
eval() but… How could I avoid that evil
function in my code?
The 3 main uses I’ve found for
- Assign a property to an object when you have its name calculated in a variable
- Call a function when you’ve it’s name calculated in a variable
- Create an object from a class when you’ve it’s name calculated in a variable
To sum up, do any access of any kind to any object’s property when you’ve this property name in a variable. This kind of access can be accomplished using this notation.
If you don’t believe it, just copy&paste the previous code on Firebug and see how it works.
So, let’s now see an example on the previous cases
Those were just a couple of basic examples that I could remember, but I’m quite
sure that there are much more other evil uses of
eval() out there that you
can destroy :D