DevTips is a weekly video show for those who wants to be inspired and learn about programming. Hosted by David Smith and MPJ - two notorious bug generators and teachers.
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Paged.js
Paged.js is a free and open-source library that paginates any HTML content to produce beautiful print-ready PDF. The library fragments the content, reads your CSS print declarations and presents a paginated preview in your browser that you can save as PDF.
DropCSS
DropCSS is an unused CSS cleaner; it takes your HTML and CSS as input and returns only the used CSS as output.
4Forms
A declarative, efficient, and flexible JavaScript validation library for Humans. V4f provides a lot of rules that you can use to build complex validation without the need to be a javascript expert.