A library of fixes for the discord.js library. I did not write these; the authors are given credit in the source code and below.
Credit: Danktuary
When a discord.js client starts up it only subscribes to Reactions on messages sent while it has been online. Messages sent from before that timestamp don't trigger a reaction add/remove event. This method patches that functionality in, so that every reaction event triggers the event.
Usage
import { fixPartialReactionEvents } from '@aquarius-bot/discordjs-fixes';
const client = new Discord.Client();
fixPartialReactionEvents(client);