gestion/events/gestion/prevname.js

const { Events } = require("discord.js");
const db = require('quick.db');
const PrevnameDb = new db.table("prevname");
module.exports = {
  name: Events.GuildMemberUpdate,
  async execute(oldMember, newMember) {
    if (oldMember.displayName !== newMember.displayName) {
      let changeData = {
        oldName: oldMember.displayName,
        newName: newMember.displayName,
        changeDate: Math.floor(Date.now() /  1000) 
      };
      let nameChanges = PrevnameDb.get(`${newMember.id}.nameChanges`) || [];

      nameChanges.push(changeData);

      PrevnameDb.set(`${newMember.id}.nameChanges`, nameChanges);
    }
  },
};