admin管理员组

文章数量:1331958

i need to detect changes of the viewport width for mobiles. Im using the following code to detect resize changes of the browser window but the addEventListener doesnt fire my functions when the window is resized:

<html>
<head>
</head>
<body>

<div id="size">-</div><br>
<div id="orientation">-</div>

<script>

window.addEventListener('resize', sizeChanged() );

function sizeChanged() {

    var w=window.outerWidth;
    var h=window.outerHeight;
    var txt='<b>sizeChanged:</b><br> W=' + w + 'px<br> H=' + h+'px';
    document.getElementById('size').innerHTML=txt;
    console.log(txt);
}

window.addEventListener('orientationchange', orientationChanged() );

function orientationChanged() {

  var w=window.outerWidth;
  var h=window.outerHeight;
  var txt='<b>orientationChanged:</b><br> W=' + w + 'px<br> H=' + h+'px';
  document.getElementById('orientation').innerHTML=txt;
  console.log(txt);

}

</script>

</body>
</html>

I trid the code above with FF 62.0.3, Chrome 70.0.3538.77 and IE11.

Does anyone have an idea what's wrong with my code?

i need to detect changes of the viewport width for mobiles. Im using the following code to detect resize changes of the browser window but the addEventListener doesnt fire my functions when the window is resized:

<html>
<head>
</head>
<body>

<div id="size">-</div><br>
<div id="orientation">-</div>

<script>

window.addEventListener('resize', sizeChanged() );

function sizeChanged() {

    var w=window.outerWidth;
    var h=window.outerHeight;
    var txt='<b>sizeChanged:</b><br> W=' + w + 'px<br> H=' + h+'px';
    document.getElementById('size').innerHTML=txt;
    console.log(txt);
}

window.addEventListener('orientationchange', orientationChanged() );

function orientationChanged() {

  var w=window.outerWidth;
  var h=window.outerHeight;
  var txt='<b>orientationChanged:</b><br> W=' + w + 'px<br> H=' + h+'px';
  document.getElementById('orientation').innerHTML=txt;
  console.log(txt);

}

</script>

</body>
</html>

I trid the code above with FF 62.0.3, Chrome 70.0.3538.77 and IE11.

Does anyone have an idea what's wrong with my code?

  • javascript
  • addeventlistener
  • window-resize
  • device-orientation
Share Improve this question asked Oct 27, 2018 at 2:36 Peter FurzPeter Furz 651 silver badge8 bronze badges
Add a ment  | 

1 Answer 1

Reset to default 6

You're suddenly calling those functions, so basically, you're passing the result from those functions, in this case, undefined.

You need to pass the function as a reference (param), for example,

window.addEventListener('resize', sizeChanged); // Look at the missing parentheses.
window.addEventListener('orientationchange', orientationChanged); // Look at the missing parentheses.

本文标签： javascriptaddEventListener 39resize39 doesnt fire when resizing the browser windowStack Overflow

版权声明：本文标题：javascript - addEventListener &#39;resize&#39; doesnt fire when resizing the browser window - Stack Overflow 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.betaflare.com/web/1742235901a2438075.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。