Comments

Swift has adopted C-style comments of both forms:

// We have used this one already 
// in previous sections of this chapter 

When it starts to get messy, with // at the beginning of each commented line, we have the following multiline comments:

/* 
This is a multiline 
comment, for those times when 
you just can't say it 
in a few words 
*/ 

Unlike some languages, you can nest these comments, which is handy if you need to comment out a large section of code that itself contains comments:

/* 
Comments can be nested, 
/* 
like this one 
*/ 
which can be helpful. 
*/