This Q&A is part of a weekly series of posts highlighting common questions encountered by technophiles and answered by users at Stack Exchange, a free, community-powered network of 100+ Q&A sites.

The most commonly used JavaScript effect on the Web is the image rollover. For the one person with access to the Web who’s never seen one before, an image rollover happens when you move your cursor ...

Data visualization is an important part of telling stories, but you can get lost in the weeds with D3.js for hours just to make a few simple charts. If charts are all you need, there are plenty of ...

JavaScript’s reduce is one of the most useful array methods that should be in a developer’s arsenal. Introduced in ES5, it’s somewhat similar to for…each and map methods that are used with arrays, but ...

The thrill of classic games has never faded, and one of the most iconic experiences is playing Snake. But did you know you can create this nostalgic game yourself? Learning how to build a snake game ...