Swift 4 NEW Tutorial-2 (Strings are Collections Again)

Prior to Swift 3, Strings are collection types, Now again in Swift 4 they are collections.

Swift 3 

-------------------------------------------------------------------------

var str = “Hello World!”

str.characters.count

str.characters.append(“appending….”)

-------------------------------------------------------------------------

Swift 4 

-------------------------------------------------------------------------

var str = “iOS Solves”

str.count        // 10

str.append(“ Blog”)      // iOS Solves Blog

-------------------------------------------------------------------------

Multiline strings :-

Swift 3

let name = “name1 \n name2 \n name3”

Output:

name1

name2

name3

Swift 4

Use 3 double quotes to specify it as a multiline string.

-------------------------------------------------------------------------

let name = “””

name1

name2

name3

“””

Output:

name1

name2

name3

-------------------------------------------------------------------------

Use spaces for indentation

-------------------------------------------------------------------------

let name = “””

  name1

  name2

  name3

“””

Output:

  name1

  name2

  name3

-------------------------------------------------------------------------

Hope this post is useful. Feel free to comment incase of any queries.