Discord.js V12查找以某些内容开头的角色

const Discord = require('discord.js');
const client = new Discord.Client();

client.on('ready', () => {
  console.log(`Logged in as ${client.user.tag}`);
});

client.on('message', message => {
  if (message.content.startsWith('!findRole')) {
    const guild = message.guild;
    const roleName = message.content.slice(10); // 获取输入的角色名

    const role = guild.roles.cache.find(r => r.name.startsWith(roleName));
    if (role) {
      message.channel.send(`找到以"${roleName}"开头的角色：${role}`);
    } else {
      message.channel.send(`未找到以"${roleName}"开头的角色`);
    }
  }
});

client.login('YOUR_DISCORD_BOT_TOKEN');