web_vitals

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Recent Features

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    Page Visibility API

    One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?

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    fetch API

    One of the worst kept secrets about AJAX on the web is that the underlying API for it, XMLHttpRequest, wasn't really made for what we've been using it for.  We've done well to create elegant APIs around XHR but we know we can do better.  Our effort to...

Incredible Demos

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    MooTools Fun with Fx.Shake

    Adding movement to your website is a great way to attract attention to specific elements that you want users to notice. Of course you could use Flash or an animated GIF to achieve the movement effect but graphics can be difficult to maintain. Enter...

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    Fade Images with MooTools LazyLoad

    I recently received an email from a MooTools developer asking a great question about my LazyLoad class: "I'm using your LazyLoad MooTools plugin (which is great, by the way). I have been trying to figure out how to modify it so that once an image scrolls into...

Discussion

    Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!