试图从我的公会中获得最不活跃的成员

Question

我正在使用 javascript 和 discord.js v12 n 尝试创建 !inactive cmd，它会从我的服务器中获取最不活跃的成员，然后将它们静音。当我尝试console.log(member) 时，它显示“未定义”请帮忙。

代码：

    module.exports = {
    name: "inactive",
    description: "no",
    async execute(message, args, command, client, Discord) {
        if (!message.member.roles.cache.find(r => r.name === "Isäntä")) return message.channel.send("No perms")

        let userit = new Map()
        let time = ['21600000', '10800000', '7200000', '3600000', '14400000', '18000000']; //1-6h
        let muterole = message.guild.roles.cache.find(r => r.name === 'Muted') //mute role

        message.guild.members.cache.forEach(member => {
            if(member.roles.highest != message.guild.roles.cache.get("706922406257754132")) return;
            userit.set(member.id, member)
        });
       if(userit.size == 0) return message.channel.send("None of users met requirements")
        const inactiveOnes = new Map()
        userit.forEach(member => { 
            if (!member.lastMessage) return inactiveOnes.set(member.id, member)
            if (member.lastMessage.createdTimestamp <= Date.now() - 1209600000) return;
            inactiveOnes.set(member.id, member)
        });
        if(inactiveOnes.size == 0) return message.channel.send("None of users met requirements")
        let random = Math.floor(Math.random() * 4)+1 
        let random_time = time[Math.floor(Math.random() * time.length)]
        
        for(let i = 0; i < random; i++ ){
          const keys = inactiveOnes.keys();
          let random2 = Math.floor(Math.random() * keys)
          const member = keys[random2];
          console.log(member)
          console.log(keys)
         // member.roles.add(muterole.id) 
          message.channel.send(`${member} you have been muted for being inactive! (Time: ${random_time}ms)`)
          setTimeout(() => {
         //   member.roles.remove(muterole.id)
            message.channel.send(`${member} you have been unmuted!`) 
          }, random_time)
        }
    }
} 

Answer 1

您错过了底部 for 循环中的 .length。

const keys = inactiveOnes.keys(); 
let random2 = Math.floor(Math.random() * keys.length);
const member = keys[random2];
console.log(member) console.log(keys)

没有.length，random2 设置为NaN，导致问题。

Answer 2

正如 theusaf 所说，您在获取随机数时错过了 .length。

const random2 = Math.floor(Math.random() * keys.length);

但是，即使您得到一个号码，member 仍将是 undefined。这是因为inactiveOnes.keys() 不返回数组，而是返回MapIterator。如果您想使用数组功能，您可以做以下两件事之一。

// 1:
const keys = inactiveOnes.keyArray();

// 2:
const keys = [...inactiveOnes.keys()];