AntiLeave code

const fs = require("fs");
const leave = JSON.parse(fs.readFileSync("./leave.json", "utf-8"));
const saveLeave = () => fs.writeFileSync("./leave.json", JSON.stringify(leave, null, 2));
client.on("guildMemberRemove", (member) => {
    if (member.roles.cache.find(r => r.name.toLowerCase() == "muted")) {
        if (!leave[member.guild.id]) leave[member.guild.id] = [];
        leave[member.guild.id].push(member.user.id);
        saveLeave();
    }
});
client.on("guildMemberAdd", (member) => {
    if (leave[member.guild.id] && leave[member.guild.id].includes(member.user.id)) {
        let role = member.guild.roles.cache.find(r => r.name.toLowerCase() == "muted");
        if (role) member.roles.add(role, `This member left and rejoined the server to remvoe Mute role.`);
    }
})

//By 3Mo_Steve | Toxic Codes