code a function that receives an array with duplicates and returns a new array keepin

[Charuaashini]

code a function that receives an array with duplicates and returns a new array keeping the original order of the elements but with the duplicates removed.
for example ,if the input were
@[@"dog",@"cat",@ "dog",@"fis h"]
the output would be
@[@"dog",@"cat",@ "fish"]

[donbock]

We won't write the program for you.
Please refer to Posting Homework or Coursework Questions and Answers in the Posting Guidelines.

I suggest you start by hard-coding a small set of test arrays so you can focus on the comparing array entries and removing duplicates rather than get sidetracked by data entry.