Swift Tutorials

How to check if Two Arrays are Equal in Swift

How to check if Two Arrays are Equal in Swift ?

Answer

To check if two arrays are equal in Swift, you can use the == operator for arrays with the same elements and manually compare elements for arrays with different elements.

✐ Examples

1 Arrays with Same Elements

In this example,

We create two arrays named arr1 and arr2 with the same elements.
We then use the == operator to check if the arrays are equal and store the result in the variable equal1.
The == operator checks if two arrays have the same elements in the same order.
Finally, we print the value of equal1 to the console.

Swift Program

let arr1 = [1, 2, 3]
let arr2 = [1, 2, 3]
let equal1 = arr1 == arr2
print("Arrays are equal: \(equal1)")

Output

Arrays are equal: true

2 Arrays with Different Elements

In this example,

We create two arrays named arr3 and arr4 with different elements.
We then manually compare each element of both arrays and store the result in the variable equal2.
If all elements are equal, equal2 is set to true; otherwise, it's set to false.
Finally, we print the value of equal2 to the console.

Swift Program

let arr3 = [1, 2, 3]
let arr4 = [3, 2, 1]
var equal2 = true
for i in 0..<arr3.count {
    if arr3[i] != arr4[i] {
        equal2 = false
        break
    }
}
print("Arrays are equal: \(equal2)")

Output

Arrays are equal: false

Summary

In this tutorial, we learned How to check if Two Arrays are Equal in Swift language with well detailed examples.

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How to check if Two Arrays are Equal in Swift

How to check if Two Arrays are Equal in Swift ?

Answer

✐ Examples

1 Arrays with Same Elements

Swift Program

Output

2 Arrays with Different Elements

Swift Program

Output

Summary

More Swift Arrays Tutorials