如何使用discord.js进行简单的全局冷却

const Discord = require('discord.js');

const cooldowns = new Discord.Collection();

const cooldownTime = 3000; // 冷却时间为3秒（单位：毫秒）

if (cooldowns.has(command.name)) {
  const cooldown = cooldowns.get(command.name);
  const timeLeft = cooldownTime - (Date.now() - cooldown);

  if (timeLeft > 0) {
    return message.reply(`请等待${timeLeft / 1000}秒后再使用该命令。`);
  }
}

// 执行命令的代码...

cooldowns.set(command.name, Date.now());
setTimeout(() => cooldowns.delete(command.name), cooldownTime);