The append() method adds a string value to another existing string.
Example
var msg1 = "Swift"
var msg2 = "Programming"
// append str1 and str2
msg1.append(msg2)
print(msg1)
// Output: SwiftProgramming
append() Syntax
The syntax of the string append() method is:
string.append(str: String)
Here, string is an object of the String class.
append() Parameters
The append() method takes a single parameter.
- str - string to be joined to string
append() Return Value
- returns the appended string.
Example: Swift string append()
var greet = "Hello, "
// append new string to greet
greet.append("Good Morning")
// append "!" to greet
greet.append("!")
print(greet)
// Output: Hello, Good Morning!
Using + Operator to Append
In Swift, we can also use the + operator to append two strings. For example,
var greet1 = "Hello, "
var greet2 = "Good Morning"
// use + operator to append
print(greet1 + greet2)
// Output: Hello, Good Morning