問題描述

這是我當前的代碼.感謝@André Dion 的幫助.

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);
    });
}

當用戶輸入！clearMessages"時，它會運行此代碼并僅刪除來自機器人的消息.我想添加一個功能，它還可以刪除以 !/./> 開頭的用戶消息(這些消息不僅可以來自用戶，也可以來自機器人)，所以我嘗試使用 const botMessages 將行編輯為:const botMessages = messages.filter(msg => msg.author.bot && msg.content.startsWith("!" || "." || ">"));不行.你能指出我哪里出錯了，我該如何解決這個問題?

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?

我注意到的另一個問題是，當只有 1 條機器人消息時，機器人不會刪除該消息并出現 DiscordAPIError，表示您必須提供至少 2-100 條消息才能刪除.有解決辦法嗎?

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?

謝謝.

推薦答案

const botMessages = messages.filter(msg => msg.author.bot && msg.content.startsWith 有兩個問題("!" || "." || ">"));:

1. msg.content.startsWith("!" || "." || ">") 只會根據第一個真實的語句進行評估:"！".String#startsWith 只需要一個模式，因此您必須將該調用拆分為三個調用.為方便起見，讓我們將這些檢查的結果分配給單個變量:

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
}