Swift 3.0 - Check if array contains element with property 

if array.contains(where: { $0.someProperty == "matchProperty" }) {
     // Property found
} else {
    // Property not found
}


    let elements = [1, 2, 3, 4, 5]

    if elements.contains(5) { 

        // Found

      } else {

         // Not Found

      }