Could someone help me with this code snippet?
<script type="text/javascript">
var snapper = new Snap({
element: document.getElementById('content'),
disable: 'right'
});
</script>
I need to modify it so that it only runs when the window width is 768px or less. Any ideas on how to do this using JavaScript?
Appreciate any suggestions!
To trigger a function on window resize, you can utilize the window.onresize event.
window.onresize = function () {
if (window.innerWidth <= 768) {
var snapper = new Snap({
element: document.getElementById('content'),
disable: 'right'
});
}
}
Keep in mind that this event only occurs once the resizing is completed. For more consistent results, consider using jQuery's $(window).width() instead of vanilla JavaScript, as it may provide better accuracy. Additionally, remember to include an else block to revert any changes made in the initial condition. To enhance performance and prevent redundant code execution, set up flags that are checked by both the initial condition and subsequent conditions to determine whether creating a new Snap instance is necessary.
To find the width of the viewport, you can use the window.innerWidth property. Keep in mind that this measurement does take into account the vertical scrollbar on the page.
if(window.innerWidth <= 768) {
// add your code here
}
Check out the source for more information: https://developer.mozilla.org/en-US/docs/Web/API/window.innerWidth
It's worth noting that the innerWidth property is not supported in Internet Explorer versions before IE9, Safari versions before Safari 3, and Opera versions before Opera 9.
Consider utilizing modernizr's media query feature to determine the condition for running this code.
You have the ability to create a media query just like in CSS, and if it evaluates to true, then proceed with running your code.
if(Modernizr.mq('(max-width: 767px)'){
//your code
}
Using jQuery, you can easily retrieve the dimensions of the window by using the following:
$(window).width();
$(window).height();
If you are already utilizing jQuery and wish to perform a specific action based on the window width:
$(window).resize(function() {
if ($(window).width() <= 768) {
//execute code for smaller screens
}
else {
//return to default behavior
}
});
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