Swift Basic Programming Exercise: Take the first two characters from a given string and create a new string with the two characters added at both the front and back

Last update on December 21 2024 10:30:03 (UTC/GMT +8 hours)

Write a Swift program to take the first two characters from a given string and create a new string with the two characters added at both the front and back.

Pictorial Presentation:

Sample Solution:

Swift Code:

func front_back_add2(str1: String) -> String {
    let newInput = str1.characters
    let first_2values = newInput.prefix(2)
    let first_two = String(first_2values)
    return first_two + str1 + first_two
}

print(front_back_add2(str1: "swift"))
print(front_back_add2(str1: "abc"))
print(front_back_add2(str1: "ab"))
print(front_back_add2(str1: "a"))

Sample Output:

swswiftsw
ababcab
ababab
aaa

Swift Programming Code Editor:

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