Javascript 倒计时应用程序不起作用

Question

I'm trying to create a simple counter, so that every request made to path \count would decrease the count by one. Once it's below 1, it will response with the message "Finished". Requests to any other path would get a response "None". Can someone tell me what to change?

let count = 5;
const handleRequest = (request) => {  
  const url = new URL(request.url);
 
  let message = "Finished";   
  if (url.pathname === "/count" && count >=1) {


count--;
    return new Response(count); 
     
  } else if (url.pathname ==="/count" && count < 1); { 
    return new Response(message); 
  } else {
    return new Response("None") 
  } 
};

Answer 1

By the looks of it, it appears that you are returning a value before decrementing the count. This stops the decrementing line from running and therefore not affecting the count.

Try swapping the return statement and the decrement:

let count = 5;
...
if (url.pathname === "/count" && count >=1) { 
    count--; 
    return new Response(count); 
} else if (url.pathname ==="/count" && count < 1); { 
 ...
} 
};