Remove duplicates from two separate arrays javascript

Question

I am working on the roleUpdate event on my Discord bot, I have old role permissions, and new role permissions in the form of an array which prints:

[ 'VIEW_AUDIT_LOG', 'MANAGE_ROLES' ] // Old Roles
[ 'MANAGE_GUILD', 'VIEW_AUDIT_LOG', 'MANAGE_ROLES' ] // New Roles

Following this example, the output I need would be MANAGE_GUILD as that is the only changed object. How would I go about doing something like this?

Does this answer your question? Compare two Javascript Arrays and remove Duplicates — Luís Ramalho
– Luís Ramalho, Commented Apr 26, 2020 at 1:26

Josh · Accepted Answer · 2020-04-26 01:20:28Z

1

Use this code

newroles.filter((role) => !oldroles.includes(role));

answered Apr 26, 2020 at 1:20

Josh

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