main.swift

//
//  main.swift
//  SearchTest
//
//  Created by Paul Wilkinson on 22/8/17.
//  Copyright © 2017 Paul Wilkinson. All rights reserved.
//

import Foundation


class Thing: NSObject {
    var uuid: String
    
    init(uuid: String) {
        self.uuid = uuid
    }
}


var things = [Thing]()

for i in 0...10000 {
    let newThing = Thing(uuid: UUID().uuidString)
    things.append(newThing)
}

var start=Date()

let random = Int(arc4random_uniform(UInt32(things.count)))

let searchThing = things[random]

let predicate = NSPredicate(format: "uuid == %@", searchThing.uuid)

let thing = (things as NSArray).filtered(using: predicate)

print(Date().timeIntervalSince(start))

start = Date()

var outputArray = [Thing]()

for compareThing in things {
    if compareThing.uuid == searchThing.uuid {
        outputArray.append(compareThing)
    }
}
print(Date().timeIntervalSince(start))