Proposal: Use let for all constant values

[ColinEberhardt]

I find myself using let for constant class properties, but often forget that you can use let for constants within the scope of functions.

My proposal is that let is used for any value that is a constant.

[gregheo]

I have a feeling I'm going to end up just saying :+1: to all of these issues :]

Following the general trend of immutability by default in Objective-C, I think this is a good idea.

[hollance]

Use let unless it needs to be a var. :-)

EDIT: I'd even say, Use let unless this results in a compiler error. (Or at least, unless the compiler won't let you.)

[ghost]

I don't think this is even a style issue. Apple said to use let for all constants. The compiler apparently produces faster code that way.

To get into the habit, I'm typing let all the time and then only changing to var when I find myself trying to change a value.

Sent from my iPhone

On Jun 10, 2014, at 3:55 AM, Matthijs Hollemans notifications@github.com wrote:

Use let unless it needs to be a var. :-)

— Reply to this email directly or view it on GitHub.

[Paradox927]

I agree, we should use let for all constants.

[hollance]

I'm currently converting a SpriteKit demo app to Swift and it's not using var anywhere. :-)

[rnystrom]

Agreed, and especially important when using collections

[sammyd]

:+1:

[cwagdev]

:+1: