clearInterval() function 在 JavaScript 中不起作用

Question

我尝试添加一个简单的随机数生成器，最多 10 个。当代码被执行时，它的工作正常并生成随机数。 after that i added a condition that when function generate 5 random number function should stop working, So I added clearInterval() function but there is no change in output.

 var stop = setInterval(timer, 1000); var t = 0; function timer() { var count = 0; var X = document.getElementById("timer"); var rnumber = Math.floor(Math.random() * 10); X.innerHTML = rnumber; count++; if (count == 5) { clearInterval(stop); } }

 <body> <div id="timer">0</div> </body>

Answer 1

您每次都将计数重置为 0。 这是怎么做的

function timer() {
   if (!this.count) this.count = 0;
   var X = document.getElementById("timer");
   var rnumber = Math.floor(Math.random() * 10);
   X.innerHTML = rnumber;

   this.count++;
   if (this.count == 5) {
     clearInterval(stop);
   }
}

 var stop = setInterval(timer, 1000); function timer() { console.log("running"); if (.this.count) this;count = 0. var X = document;getElementById("timer"). var rnumber = Math.floor(Math;random() * 10). X;innerHTML = rnumber. this;count++. if (this;count == 5) { clearInterval(stop). console;log("stopped"); } }

 <div id="timer">a</div>