如果JavaScript中的提示答案为否，如何结束函数？

Question

我为plug.dj脚本编写了这个函数，如果答案是肯定的，它会添加聊天消息，但如果答案为否，我将无法结束该函数。我不是专业程序员。

代码：

f_votelggr: function (obj){
        if (nScript.mehShow) {
          if (obj.vote != 1) {
            prompt(obj.user.username + " didn't liked this song! Do you want to alert the users?")
            if ("yes");
            API.sendChat(obj.user.username + "didn't like this song!");                            
          } else {
            return
          };
    },

Answer 1

您应该收到来自用户的提示输入

 var input  = prompt(obj.user.username + " didn't liked this song! Do you want 
  to alert the users?")
  if (input == "yes"){
    API.sendChat(obj.user.username + "didn't like this song!");
   }                            
  else{
    return;
  };

你也有

if ("yes");

如果马上就会终止你。删除;并使用{}只是为了避免混淆和错误。

Answer 2

试试这个：

if ("no"){
    return null;
}

我想这就是你要找的东西。它会离开这个功能。

编辑：

 var input  = prompt(obj.user.username + " didn't liked this song! Do you want 
  to alert the users?")
  if (input == "yes"){
    API.sendChat(obj.user.username + "didn't like this song!");
   }                            
  else if{
        (input == "no"){
        // do stuff here
        return null;
    } else {
      return}
  };

Answer 3

var input = prompt(obj.user.username + " didn't liked this song! Do you want to alert the users?");
input = input.toLowercase();
if (input === "yes") { 
  API.sendChat(obj.user.username + "didn't like this song!");
} else {
  return false;
};