Variables

Question

Is it "proper programming" to declare multiple variables in one line? I.e. var a, b, c, d = 4

Answer 1

yes then use it where required,but if you declare variables and not use then this is not good because variable hold space

Answer 2

for claity, if you want any of them to have initial values, it is suggested to have them on separate lines, but not absolutely necessary.

Answer 3

I still don't understand how the variable work's.