Difference between window[] and eval() - Javascript

Question

I\'ve been using both in javascript ... really don\'t know the difference. Googling always shows results for the \"window object\" or \"opening a new window in javascript\"

Answer 1

eval() interprets arbitrary javascript statements, whereas with window you are accessing a property of the window object.

In your example, you seem to be using a property name in both eval() and window[]. As the global scope in a browser is the same as the window object's scope they will evaluate to the same thing.

You can think of your eval("v"+e) statement as being equivalent to eval("window['v'" + e +" ]").