code-snippet
/
throttle.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <input type="text" oninput="onInput()">
  <script>
    const onInput = throttle(triggerSearch, 500);
    function triggerSearch() {
      console.log('search');
    }
    function throttle(fn, interval) {
      let lastTime;
      return function (...args) {
        if(lastTime) {
          const now = Date.now();
          if((now - lastTime) > interval) {
            lastTime = now;
            fn(...args);
          }
        } else {
          lastTime = Date.now();
          fn(...args);
        }
      }
    }
  </script>
</body>
</html>