Discord.js//过滤消息startsWith 并解决bulkDelete 的Dis

问题描述

这是我当前的代码.感谢@André Dion 的帮助.

This is my current code. Credit goes to @André Dion for the help.

  if (message.channel.type == 'text') {
    message.channel.fetchMessages().then(messages => {
        const botMessages = messages.filter(msg => msg.author.bot) 
        message.channel.bulkDelete(botMessages);
        messagesDeleted = botMessages.array().length; // number of messages deleted

        // Logging the number of messages deleted on both the channel and console
        message.channel.send("Deletion of messages successful. Total messages deleted: " + messagesDeleted);
        console.log('Deletion of messages successful. Total messages deleted: ' + messagesDeleted)
    }).catch(err => {
        console.log('Error while doing Bulk Delete');
        console.log(err);
    });
}

当用户输入！clearMessages"时，它会运行此代码并仅删除来自机器人的消息.我想添加一个功能，它还可以删除以 !/./> 开头的用户消息(这些消息不仅可以来自用户，也可以来自机器人)，所以我尝试使用 const botMessages 将行编辑为:const botMessages = messages.filter(msg => msg.author.bot && msg.content.startsWith("!" || "." || ">"));不行.你能指出我哪里出错了，我该如何解决这个问题?

When the user enters "!clearMessages" it runs this code and deletes only messages from bots. I would like to add a feature where this also deletes messages from users that starts with !/./> (these messages can be from users not only bots), so I tried editing the line with the const botMessages to this: const botMessages = messages.filter(msg => msg.author.bot && msg.content.startsWith("!" || "." || ">")); but that didn't work. Can you please point out where I'm going wrong and how I can fix this?

我注意到的另一个问题是，当只有 1 条机器人消息时，机器人不会删除该消息并出现 DiscordAPIError，表示您必须提供至少 2-100 条消息才能删除.有解决办法吗?

Another issue I noticed is that when there is only 1 bot message the bot doesn't delete the message and comes up with an DiscordAPIError, saying that you must provide at least 2-100 messages to delete. Is there a work around this?

谢谢.

推荐答案

const botMessages = messages.filter(msg => msg.author.bot && msg.content.startsWith 有两个问题("!" || "." || ">"));:

1. msg.content.startsWith("!" || "." || ">") 只会根据第一个真实的语句进行评估:"！".String#startsWith 只需要一个模式，因此您必须将该调用拆分为三个调用.为方便起见，让我们将这些检查的结果分配给单个变量:

const isCommand = msg.content.startsWith("!") || msg.content.startsWith(".") || msg.content.startsWith(">");

const botMessages = messages.filterArray(msg => {
    const isCommand = msg.content.startsWith("!") || msg.content.startsWith(".") || msg.content.startsWith(">");

    return msg.author.bot || isCommand;
});

if (botMessages.length > 1) {
    message.channel.bulkDelete(botMessages);
} else if (botMessages.length) {
    botMessages[0].delete();
} else {
    // nothing to delete
}