javascript - 如何在一定量的 react 后使 react 消失？

Question

我想创建一个 poll 命令，在那里我使用该命令，当 react 达到一定数量的 react 时，它( react )被删除。如果你理解我的话，看看谁赢了会很有用。
这就是我现在仅用于添加 react 的用途。

bot.on('message', msg => {
    if(msg.content === "memes"){
        msg.react("🤏🏾")
    }
})

Answer 1

您可以使用 reaction collectors收集用户对消息的 react 。收集器有类似 maxUsers 的选项您可以使用它来设置要使用react的最大用户数。一旦到达，collector.on('end')火灾，因此您可以使用它来获取 react 的用户数量等。
您可以使用 message.reactions.removeAll(); 删除 react 。
检查下面的片段:

if (message.content === 'memes') {
  const EMOJI = '🤏🏾';
  const filter = (reaction, user) =>
    reaction.emoji.name === EMOJI && !user.bot;
  const collector = message.createReactionCollector(filter, {
    // optional, the maximum time in ms the collector collects reactions
    time: 10000,
    // maximum number of users to react
    // it includes the bot's reaction too
    maxUsers: 3,
  });

  message.react(EMOJI);

  collector.on('collect', (reaction, user) => {
    // it fires every time someone reacts to the message
    console.log('collected', reaction);
  });

  collector.on('end', async (collected, reason) => {
    const reaction = collected.get(EMOJI);

    if (!reaction) {
      return message.channel.send('Oops, there were no reactions');
    }

    // it includes the bot too
    const allUsers = await reaction.users.fetch();
    // collection of users who reacted to the message, bot removed
    const users = allUsers.filter((user) => user != client.user);

    message.channel.send(
      `Poll has ended because of ${reason}. Received ${users.size} reactions.`
    );
    message.channel.send(
      `Users reacted: ${users.array().join(', ')}`
    );

    // remove reactions
    message.reactions.removeAll();
  });
}

如果你想拥有一组表情符号，你可以使用 EMOJIS数组代替:

if (message.content === 'memes') {
  const EMOJIS = ['🤏🏾', '😱'];
  const filter = (reaction, user) =>
    EMOJIS.includes(reaction.emoji.name) && !user.bot;
  const collector = message.createReactionCollector(filter, {
    time: 10000,
    maxUsers: 3,
  });

  EMOJIS.forEach((emoji) => message.react(emoji));

  collector.on('collect', (reaction, user) => {
    // it fires every time someone reacts to the message
  });

  collector.on('end', async (collected, reason) => {
    if (!collected.size) {
      message.reactions.removeAll();
      return message.channel.send('Oops, there were no reactions');
    }

    // you can use the collected reactions any way you want
    console.log(collected);

    // remove reactions
    message.reactions.removeAll();
  });
}