Swift String Exercises: Test if a given string starts with 'ab'

Last update on December 21 2024 10:29:10 (UTC/GMT +8 hours)

Write a Swift program to test if a given string starts with "ab".

Pictorial Presentation:

Sample Solution:

Swift Code:

import Foundation

func starts_with_ab(_ input: String) -> Bool {
    if input.hasPrefix("ab")
    {
        return true
    } 
    else 
    {
        return false
    }
}
print(starts_with_ab("pqrsab"))
print(starts_with_ab("abpqrsab"))
print(starts_with_ab("pqrs"))
print(starts_with_ab("abpqrs"))

Sample Output:

false
true
false
true

Swift Programming Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a Swift program to create a new string without the first and last character of a given string. The string may be any length, including 0.
Next: Write a Swift program to create a new string made of the first and last n chars from a given string. The string length will be at least n.