Swift Basic Programming Exercise: Test a given string whether it starts with "Is"

Last update on June 14 2025 05:36:43 (UTC/GMT +8 hours)

Write a Swift program to test a given string whether it starts with "Is". Return true or false.

Pictorial Presentation:

Sample Solution:

Swift Code:

func start_is(str1: String) -> Bool {
    let str2 = str1.characters
    let hello = "Is"
    let first2Values = str2.prefix(2)
    let first_two = String(first2Values)
    
    if hello == first_two {
        return true
    } else {
        return false
    }
}


print(start_is(str1: "Is Swift"))
print(start_is(str1: "is python"))
print(start_is(str1: "java is"))

Sample Output:

true
false
false

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