Swift String Exercises: Concat two given strings and return the new string

Swift String Programming: Exercise-16 with Solution

Write a Swift program to concat two given strings and return the new string. If the new string creates a double character then omit one of the character. so "vwx" and "xyz" will return "vwxyz".

Pictorial Presentation:

Sample Solution:

Swift Code:

func join_string(_ a: String, _ b: String) -> String {
    
    var str1 = a
    var str2 = b
    
    if str1.characters.last == str2.characters.first {
        str2.remove(at: str2.startIndex)
    }
    
    return str1 + str2
}

print(join_string("vwx", "xyz"))
print(join_string("vwx", "yz"))
print(join_string("vwx", ""))

Sample Output:

vwxyz
vwxyz
vwx

Swift Programming Code Editor:

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