We use code comments to add information to our code.
With Swift, you can add a one-line code comment, multiple-line code comments, and nested code comments.
Use the double backslashes
// to start a one-line code comment.
//One line code comment
You can fill up one line with these types of comments.
A multiline comment starts the comment with a backslash and
/*, write the comment, and end it with an asterisk and backslash
/* Multiple line code comment Use this when you need to provide more detail */
Swift supports nested comments.
/* /* Define a and b constants */ let a = 1 let b = 2 /* Define c and d constants */ let c = 3 let d = 4 */
In the code above the last comments is nested comments.