Question

Using swift 4.0, Write a function (not method) named findName which returns a given name (passed as a parameter)

if it is in the string array passed as a parameter, otherwise return nil

Demonstrate calling the function findName. Using swift 4.0

Answer 1

func findName(array: [String],name: String) -> String {
if array.contains(name) {
return name;
}else {
return "null";
}
  
  

  
  
}
let z=findName(array: ["swarup", "alisa", "peter"],name:"swarup")
print(z)

output:

when string in array:

output when string not in array:

CSecure https//iswift.org/playground iSwift Home Cookbook Playground Swift 4-in-1 Pro bund e Try Online Buy K/> Run Swift l, func f2ndName(array: if array.containsnae) ( rcturn nane [String], name : String》 -> String swar up user- return null: 12 1 13 let z-findName (array: ["awarup", "alisa", "peter",name:"swarup") 14 print (2) save Run 2.2 3.1 Run Swift is a web tool where you can easily try Apple's Swift language online. Just paste any snippet, switch to the Swift version you prefer (either 2.2- without Foundation support-3.1, or4.0- 8:51 AM O Type here to search

CSecure https//iswift.org/playground iSwift Home Cookbook Playground Swift 4-in-1 Pro bund e Try Online Buy K/> Run Swift I, func f2ndName(array: if array.containsnae) ( rcturn nane [String], name : String》 -> String user- return null: 12 let z-findName (array: I"owarup", "alisa", "peter",name:"kumar) dprint (2) 15 save Run 2.2 3.1 Run Swift is a web tool where you can easily try Apple's Swift language online. Just paste any snippet, switch to the Swift version you prefer (either 2.2- without Foundation support-3.1, or4.0- O Type here to search 8:52 AM 2/7/2018

the above code is executable one with screenshot.worked in online ide.searches for a string in array returns name of string if found else returns null