Uncaught TypeError: Cannot read property 'offsetWidth' of undefined

[TomFevrier]

Hi everyone!

When I tried to use the library, I got this error:

Uncaught TypeError: Cannot read property 'offsetWidth' of undefined
at new Horizontal (powerange.js:1602)
at new module.exports (powerange.js:1268)

Where does this come from? I just copied one of the examples in the example file:

<script>
    var stp = document.querySelector('.js-step');
    var initStp = new Powerange(stp, { start: 50, step: 10 });
</script>

<div class="slider-wrapper">
    <input type="text" class="js-step" />
</div>

Thank you very much!

[macagua]

@TomFevrier I have the same error and I fixed it adding the script tag for import powerange.js before the the script tag for my Javascript function, like this:

  <script src="assets/powerange-0.0.2.js"></script>
  <script type="text/javascript">
    var elem = document.querySelector('.js-opacity');
    var init = new Powerange(elem, { callback: setOpacity, decimal: true, min: 0, max: 3, start: 1 });
    function setOpacity() {
      document.querySelector('.js-change-opacity').style.opacity = elem.value;
    }
  </script>

I hope can help you!