Question

嘿，我想在持续时间结束foreach后向我的机器人发送一条消息

代码：


        let beforecheck = new Date();


        bot.guilds.forEach(guild => {

            //my foreach code

            }).then(() => {

            let aftercheck = new Date();

            var finished = new Discord.RichEmbed()
            .setDescription("✔ Finished ✔")
            .addField("? Bot Latency", bot.ping + " ms")
            .addField("expected time", expectedtime + " minute(s)")
            .addField("final time", (60000 / (beforecheck - aftercheck)) + " minute(s)")

            message.channel.send(finished)

            })

感谢您的答复

Answer 1

从您的代码看来，您似乎希望forEach花费大量时间，并且由于您要遍历guild s这一事实，所以我期望其中涉及某种异步Discord API调用。如果两者都正确，则forEach是该工作的错误工具。

如果订单很重要 ：（在async function中）

    let beforecheck = new Date();

    for(const guild of bot.guilds) { //might need bot.guilds.array()
        //use await on asynchronous calls
    }

    let aftercheck = new Date();

    var finished = new Discord.RichEmbed()
        .setDescription("✔ Finished ✔")
        .addField("? Bot Latency", bot.ping + " ms")
        .addField("expected time", expectedtime + " minute(s)")
        .addField("final time", (60000 / (beforecheck - aftercheck)) + " minute(s)")

    message.channel.send(finished)

如果订单无关紧要：

    let beforecheck = new Date();

    await Promise.all(bot.guilds.map(guild => {
        //return a promise or use async/await here
    }); //can also use .then() here but async/await is better

    let aftercheck = new Date();

    var finished = new Discord.RichEmbed()
        .setDescription("✔ Finished ✔")
        .addField("? Bot Latency", bot.ping + " ms")
        .addField("expected time", expectedtime + " minute(s)")
        .addField("final time", (60000 / (beforecheck - aftercheck)) + " minute(s)")

    message.channel.send(finished)

等待foreach任务完成以继续

1 个答案: