ios - Check if NSMutableArray contains a given value -

i have nsmutablearray contains string values. have string variable , want check if contained in array or not.

i tried using .contains() string say:

cannot convert value of type string expected argument type...

var mutablearray = nsmutablearray()  // ["abc", "123"] var string = "abc"  mutablearray.contains("abc") {       // above error in line  } 

multiple ways check element existence in nsmutablearray. i.e

if mutablearray.contains("abc")       print("found")   else       print("not found")   

or

if contains(mutablearray, "abc")        print("found")   

or

if mutablearray.indexofobject("abc") != nsnotfound   print("found")   

if want check existence of element according of version of swift

swift1

if let index = find(mutablearray, "abc")       print(index) 

swift 2

if let index = mutablearray.indexof("abc")       print(index)