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Andrian Gungon
1,129 Pointsvariable with underscore
it's not clear to me why the float variable in this lesson has underscore(_)?
4 Answers
Stone Preston
42,016 Pointsits an objective c naming convention.
Andrian Gungon
1,129 Pointswhen to add underscore in a variable? or it is just a naming convention to add underscore when variable is float only?
Stone Preston
42,016 Pointswhenever you want. It is a convention to differentiate member variables from local variables. You dont have to name your variables like that. Its just a convention that a lot of people use.
Andrian Gungon
1,129 Pointsthank you so much sir Stone Preston, now I understand.
Stone Preston
42,016 Pointsyou might also see it when using properties. If I have a property named variable I can either access it directly using _variable or use the setter/getter methods variable and setVariable. When using properties, the _variable is generated behind the scenes.
Stone Preston
42,016 Pointsassuming it was syntesized as @synthesize variable = _variable. But you dont have to do that kind of stuff nowadays. So what I said before may not be true
Andrian Gungon
1,129 Pointsthanks again for added info.