simple function to measure time of execution of anything. it's pretty enough to measure some simple things.

measure_time.swift

//
//  main.swift
//  swift challenges
//
//  Created by Filipp Mikheev on 06.06.22.
//

func measureTime(block : (() -> Void)) {
    let start = DispatchTime.now()
    block()
    let end = DispatchTime.now()
    let totalNanosec = end.uptimeNanoseconds - start.uptimeNanoseconds
    let timeInterval = Double(totalNanosec) / 1_000_000_000
    print("Time: \(timeInterval) seconds")
}

// USAGE
measureTime {
    // Do your stuff here
}