How to find out what was removed from an array of string?

[JLeong]

Hi Guys,

I need you assistance.....

I have an array of names, lets call it original members  ["jo", "john", "jan" ]...

I have another array of names, lets call it new members ["jo", "john", "kevin", "joe" ] ...

I have 2 variables to populate as to which names were added and removed.

Based on my list,  Kevin and Joe are new members and Jan was removed. Could someone please assist as to how I can accomplish this.

Thank you!

[Bert_c1]

Hi JLong,

look here: https://www.geeksforgeeks.org/how-to-get-the-difference-between-two-arrays-in-javascript/

Another place: https://stackoverflow.com/questions/1187518/how-to-get-the-difference-between-two-arrays-in-javascri...

[DrewW]

In your instance there is a script include called ArrayUtil that has a diff method that you can use for this.

You just need to call it twice, once for orig-new and then new-orig and that will tell you what was removed and what was added.

[Riya Verma]

HI @JLeong 

Hope you are doing great.

To determine the added and removed members, you can use simple array operations. Here's a concise solution:

// Define the original and new arrays
const originalMembers = ["jo", "john", "jan"];
const newMembers = ["jo", "john", "kevin", "joe"];

// Find added members
const addedMembers = newMembers.filter(name => !originalMembers.includes(name));

// Find removed members
const removedMembers = originalMembers.filter(name => !newMembers.includes(name));

// Result
gs.info("Added members:", addedMembers);
gs.info("Removed members:", removedMembers);

[JLeong]

Thank you guys! I will try them and let you know.