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Matthew Chess
13,860 Pointsself. something vs. _something
When working with instance variables, what is the difference between self.var and _var? For example what is the difference if I have a contacts array and called self.contacts or _contacts?
1 Answer
Robert Bojor
Courses Plus Student 29,439 PointsHi Matthew,
There's a small difference in speed when using _contacts over self.contacts but there are other considerations as well... see this article for more details and speed tests:
http://www.bignerdranch.com/blog/should-i-use-a-property-or-an-instance-variable/