Javascript等待函数响应完成

Question

I am trying to ask a follow up question "quick reply" in a Facebook bot implementation. You can see the full app.js (sample file here): https://github.com/fbsamples/messenger-platform-samples/blob/master/node/app.js

When the 1) user enters a command -- eg "hello", after i send the user the relevant response -- 2) i want to ask a follow up question.. eg "Would you like to know about the weather today?"

case 'hello':
       sendHelloGenericReponse(senderID);
       sendWeatherQuickReplyQuestion(senderID); //only execute this after above is complete
       break;

Ie i want to wait for 1 to complete before doing 2. However, for some reason the weather question always gets displayed to user first. Any help would be appreciated

Answer 1

wrap you function in setTimeout

 case 'hello': sendHelloGenericReponse(senderID); setTimeout(function(){ sendWeatherQuickReplyQuestion(senderID); },0) //only execute this after above is complete break;