Name: Web Animations API: currentTime
Description: This lesson shows you to pause, set initial states, and build custom playback controls for precise front-end animation management.

This lesson shows you to pause, set initial states, and build custom playback controls for precise front-end animation management.

Learn how to control and scrub through Web Animations API timelines in JavaScript like a pro. This tutorial shows you to pause, set initial states, and build custom playback controls for precise front-end animation management.

<html>
<head>
  <style>
    body {
      background-color: #222;
    }
    .container {
      display: flex;
      justify-content: center;
    }
    .circle {
      width: 200px;
      height: 200px;
      border-radius: 100%;
      border: 4px solid #fff;
      border-top: 4px solid blue;
    }
    #playback {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
    }
    #current {
      color: #fff;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="circle"></div>
  </div>
  <div id="playback">
    <div>
      <input value="0" id="range" type="range" min="0" max="1000" step="1">
    </div>
    <div id="current">0</div>
  </div>

  <script>
    const myAnimation = document.querySelector(".circle").animate(
      [
        {
          transform: "rotate(0)"
        },
        {
          transform: "rotate(359deg)"
        }
      ],
      {
        duration: 1000,
        iterations: Infinity
      }
    );

    myAnimation.pause();

    document.getElementById("range").addEventListener("input", e => {
      const value = e.target.value;
      document.getElementById("current").innerText = value;
      myAnimation.currentTime = +value;
    });
  </script>
</body>
</html>