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By David Walsh on January 28, 2023

Recent Features

By David WalshNovember 21, 2011
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?
By David WalshJune 2, 2015
7 Essential JavaScript Functions
I remember the early days of JavaScript where you needed a simple function for just about everything because the browser vendors implemented features differently, and not just edge features, basic features, like addEventListener and attachEvent. Times have changed but there are still a few functions each developer should...

By David WalshSeptember 8, 2009
Page Peel Effect Using MooTools
Soh Tanaka release a great script back in May titled Simple Page Peel Effect with jQuery & CSS. The idea is that you place a "peel" image on the upper-right side of an element which, when hovered, "peels" open and peels close.
By David WalshDecember 29, 2011
CSS Circles
A while back I shared a clever technique for creating triangles with only CSS. Over the past year, I've found CSS triangles incredibly effective, especially when looking to create tooltips or design elements with a likewise pointer pattern. There's another common shape...