Variables declaration performances

Question

Is there any performance advantage to declare multiple variables behind only one var tag?
Like below:
var var1, var2, var3,...;

Answer 1

yes. The browser will read the declaration at once, instead of checking line by line. Also, i's more organized by the way.

Answer 2

Yeah! That's what I was hopping... I'm trying to improve performance on my code (can find on my profil). It works well but I try to use it to practice optimisation of memory and fast refresh of canvas displays.