I often need to initialize the size or positioning of elements on a page, but there's a problem. These elements are spawned in a hidden tab. When they're hidden like that, their width/height is effectively 0. It's impossible to figure out positioning that way. jQuery-Peek provides a variety of ways to get around that issue.
You can see an example here.
Requires jQuery and this plugin.
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript" src="jquery.peek.js"></script>
Now you can use it in a variety of ways:
// Use it to call a quick jQuery function
var width = $(".target:first").peek("width");
// It works with parameters too
var outerWidth = $(".target:first").peek("outerWidth", true);
// Use it like each
$(".target").peek(function() {
console.log("this target is visible to js right now!");
console.log($(this).width());
});
// Return a more complex value
$(".target:first").peek(function() {
return $(this).outerWidth() + $(this).position().left;
});
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent