duplicate-in-list Demo
Created a text input that accepts single, multiple and even a range of numbers and matches the entered numbers with an already existing array and shows the duplicates, if any, and the final list of unique numbers.
Eg inputs -> 7000, 6000, 8000-8005.
If a range is entered, or multiple ranges are entered, all the numbers falling between that range/those ranges are considered, matched and displayed.
So to sum it up, if I have an existing array of [7000,7001,7002,7003,7004,7005] in the script and in the text input I enter 6098-7003, I will be notified that 7000, 7001, 7002, 7003 are duplicates and will be skipped, with the final list of new additions (2 in this case).