Javascript Browser Window setInterval() Method create dynamic progress bar

Introduction

Using setInterval() and clearInterval() to create a dynamic progress bar:

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<!DOCTYPE html>
<html>
<style>
#myProgress {//w  ww .j a v a  2s.  c om
  width: 100%;
  height: 30px;
  position: relative;
  background-color: #ddd;
}

#myBar {
  background-color: #4CAF50;
  width: 10px;
  height: 30px;
  position: absolute;
}
</style>
<body>
<div id="myProgress">
  <div id="myBar"></div>
</div>
<br>
<button onclick="move()">Click Me</button>

<script>
function move() {
  var elem = document.getElementById("myBar");
  var width = 0;
  var id = setInterval(frame, 10);
  function frame() {
    if (width == 100) {
      clearInterval(id);
    } else {
      width++;
      elem.style.width = width + '%';
    }
  }
}
</script>

</body>
</html>



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