javascript/jsAnimations.html at main · Mokesh-s/javascript · GitHub

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<!DOCTYPE html>
<html>
  <style>
    #container {
      width: 400px;
      height: 400px;
      border: 1px solid;
      position: relative;
    }
    #square {
      width: 50px;
      height: 50px;
      background-color: red;
      position: absolute;
      /* left: 350px; */
      right: 0;
      bottom: 0;
    }
  </style>
  <body>
    <div id='container'>
      <div id='square'></div>
    </div>
    <button onclick="animateButton()">Animate</button>
    <script>
      function animateButton() {
        let element = document.getElementById('square')
        let pos = 0
        let id = setInterval(adjustPosition, 10) // will call adjust position for
                                                //every 10 milli seconds
        function adjustPosition() {
          if (pos === 350) clearInterval(id)
          pos++ // increase the position by 1px for every 10 milli seconds
          element.style.right = pos+'px'
          element.style.bottom = pos+'px'
          // console.log('set interval function')
        }
      }
    </script>
  </body>
</html>