运行一个函数只需一次

Question

如何调用并使用此函数仅用于1个时间和rhat杀死函数之后？
调用函数：

else if (msg.text == ["contact us"]) { 
     const opts = { 
     reply_to_message_id: msg.message_id, 
     reply_markup: JSON.stringify({ 
      keyboard: arrangeKeyboard(locale.keyboards[msg.text].childs, 2, msg), 
      resize_keyboard: true, 
      one_time_keyboard: true 
     }) 
     }; 
     bot.sendMessage(msg.chat.id, "Please Write your Messages:", opts); 
     getmessage1(); 
    } 

这是我的功能，我不循环运行想，我需要发送一个信息，并中止功能。

var getmessage = async() => { 
    // Listen for any kind of message. There are different kinds of messages. 
    await new Promise((resolve, reject) => { 
    bot.on('message', (msg) => { 
     if (!locale.keyboards[msg.text] && 
     !msg.text.includes("previous button")) { 
     console.log("user message is: " + msg.text) 
     const opts = { 
      reply_to_message_id: msg.message_id, 
      reply_markup: JSON.stringify({ 
      keyboard: arrangeKeyboardWithOut(locale.keyboards["/start"].childs, 2, msg), 
      resize_keyboard: true, 
      one_time_keyboard: true 
      }) 
     }; 
     bot.sendMessage(msg.chat.id, ' your message recieved', opts); 
     } 
     resolve(true); 
    }); 
    }); 
    return 
} 

var getmessage1 = async() => { 
    await getmessage(); 
} 

Answer 1

你只需要改变，bot.on到bot.once

这样，机器人对象将只听取一次，然后从监听范围脱落事件。