Comparison operators

Swift has several operators that perform comparison, and these work more or less like you would expect in mathematics.

Let’s start with a couple of example variables so we have something to work with:

let firstScore = 6
let secondScore = 4

There are two operators that check for equality: == checks two values are the same, and != (pronounced “not equals”) checks two values are not the same:

firstScore == secondScore
firstScore != secondScore

There are four operators for comparing whether one value is greater than, less than, or equal to another. These are just like in mathematics:

firstScore < secondScore
firstScore >= secondScore

Each of these also work with strings, because strings have a natural alphabetical order:

"Taylor" <= "Swift"

SPONSORED In-app subscriptions are a pain to implement, hard to test, and full of edge cases. RevenueCat makes it straightforward and reliable so you can get back to building your app. Oh, and it's free if your app makes less than $10k/mo.

Learn more

Sponsor Hacking with Swift and reach the world's largest Swift community!