计算器等待用户输入 (Discord.js)

Question

我正在做一个 Discord 机器人，这个想法相当简单。它询问用户 3 个数字，以及应该对它们做什么（添加或删除）。目前，当您将它们全部添加为单行 (!calc add 1 1 1) 然后打印结果 (1 + 1 + 1 = 3) 时，该命令有效。但是我想知道如何设置机器人将输入的数字设置为 3 个不同的问题，而不是一次全部告诉它们。

     module.exports = {
name: 'calc',
description: "calculating",
execute(message, args){
    let method = args[0];
    let firstNumber = Number(args[1]);
    let secondNumber = Number(args[2]);
    let thirdNumber = Number(args[3]);



    const operations = ['add', 'remove'];

    if(!method) return message.reply('please select add or remove');

    if (!args[1]) return message.reply('please state first number');

    if (!args[2]) return message.reply('please state second number');

    if (!args[3]) return message.reply('please state third number');

    if (isNaN(firstNumber)) return message.reply('number 1 missing');

    if (isNaN(secondNumber)) return message.reply('number 2 missing');

    if (isNaN(thirdNumber)) return message.reply('number 3 missing');

    if (method === 'add') {

        let doMath = firstNumber + secondNumber + thirdNumber
        message.channel.send(`${firstNumber} + ${secondNumber} + ${thirdNumber} = ${doMath}`);

        if (method === 'remove') {

            let doMath = firstNumber - secondNumber - thirdNumber
            message.channel.send(`${firstNumber} - ${secondNumber} - ${thirdNumber} = ${doMath}`);
   }
  }
 }
}

显示 Discord 本身当前发生的情况： calculation process add

我自己是编码新手，所以这样的事情给我带来了问题。已经感谢您的回答。

Answer 1

尝试用这些改变“if statements”

if(method == undefined)             return  message.reply('please select add or remove');

if (!args[1] == undefined)           return message.reply('please state first number');

if (!args[2] == undefined)           return message.reply('please state second number');

if (!args[3] == undefined)           return message.reply('please state third number');

if (isNaN(firstNumber) | firstNumber === "")              return message.reply('number 1 missing');

if (isNaN(secondNumber | secondNumber === ""))             return message.reply('number 2 missing');

if (isNaN(thirdNumber) | thirdNumber === "")              return message.reply('number 3 missing');