[英]TypeError: Class extends value undefined is not a constructor or null - Node.js
[英]TypeError: Class extends value Command is not a constructor or null - node.js
我试图发出一个!warn
命令,这样我就可以警告我服务器中的人,如果你有 2 个警告,你会得到一个静音等。
当我完成时,只剩下 1 个错误。 我尝试了很多东西,但我就是想不通,每一个帮助都会很棒。
完整错误:
TypeError: Class extends value Command is not a constructor or null
at Object.<anonymous> (/app/server.js:297:12)
at Module._compile (internal/modules/cjs/loader.js:759:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:770:10)
at Module.load (internal/modules/cjs/loader.js:628:32)
at Function.Module._load (internal/modules/cjs/loader.js:555:12)
at Function.Module.runMain (internal/modules/cjs/loader.js:826:10)
at internal/main/run_main_module.js:17:11
代码:
const ms = require("ms");
class Warn extends ("Command") {
constructor(client) {
super(client, {
name: "warn",
description: "Command om een gebruiker te waarschuwen",
usage: "warn",
category: "System",
permLevel: "Moderator"
});
}
async run(message, args) {
try {
const warnedUser = message.guild.member(
message.mentions.users.first() || message.guild.members.get(args[0])
);
if (!warnedUser) return message.channel.send("Deze gebruiker bestaat niet");
const warnToAdd = 1;
const warnToDel = 4;
const reason = args.join(" ").slice(22);
this.client.warns.ensure(`${warnedUser.id}`, {
warnings: 0
});
let userWarnings = this.client.warns.get(`${warnedUser.id}`, "warnings");
userWarnings += warnToAdd;
this.client.warns.set(`${warnedUser.id}`, userWarnings, "warnings");
message.delete();
if (this.client.warns.get(`${warnedUser.id}`, "warnings") == 1) {
message.channel.send(`${warnedUser}, eerste waarschuwing (reden: ${reason})`);
} else if (this.client.warns.get(`${warnedUser.id}`, "warnings") == 2) {
const muteRole = message.guild.roles.find(x => x.name === "muted");
if (!muteRole) message.guild.createRole("name", "muted");
message.channel.send(
`${warnedUser}, tweede waarschuwing (reden: ${reason})`
);
const muteTime = "1h";
await warnedUser.addRole(muteRole.id);
message.channel.send(
`${warnedUser} is gemuted voor ${muteTime} (reden: ${reason})`
);
setTimeout(function() {
warnedUser.removeRole(muteRole.id);
message.channel.send(`De gebruiker ${warnedUser} is niet meer gemuted!`);
}, ms(muteTime));
} else if (this.client.warns.get(`${warnedUser.id}`, "warnings") == 3) {
message.channel.send(`${warnedUser}, derde waarschuwing (reden: ${reason})`);
message.channel.send(`:warning: Pas op ${warnedUser}, bij 4 waarschuwingen krijg je een kick`);
} else if (this.client.warns.get(`${warnedUser.id}`, "warnings") == 4) {
message.channel.send(`${warnedUser}, vierde waarschuwing, veel plezier met je kick (reden: ${reason})`);
warnedUser.kick(reason);
userWarnings -= warnToDel;
}
} catch (e) {
console.log(e);
}
}
}
module.exports = Warn;
如果有人可以帮助我,那就太棒了。 还有一点让我很吃惊的是,当我把这段代码放到Visual Studio Code中时,并没有出现错误,但是当我把它放到glitch.com中时,却出现了这个错误。
它应该是class Warn extends Command
,而不是class Warn extends ("Command")
。 我认为,您尝试从 Discord.js Commando 扩展Command
class。
您只能扩展类,不能扩展字符串。
此外,请确保在文件中导入 class:
const { Command } = require('discord.js-commando');
const ms = require("ms");
class Warn extends Command {
constructor(client) {
super(client, {
name: "warn",
...
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