Swift – Append String

To append a string to another string in Swift, use the String method String.append().

A simple code snippet to demonstrate how to use String.append() method

str1.append(str2)

where str1 and str2 are strings, and append() method appends str2 to str1. str1 is modified while str2 remains unchanged.

Example

In the following program, we have two strings in variables str1 and str2. We append str2 to str1 using String.append() method.

main.swift

var str1 = "Hello"
var str2 = " World!"
str1.append(str2)
print( str1 )

Output

Hello World!

Conclusion

In this Swift Tutorial, we learned how to append a string to another string using String.append() method.