CODE REUSE
The prime one among "the coder tricks".They say I am a master of code reuse. Do not be afraid of me, nothing about OOP, classes and inheritance. Mastering code reuse today means simply to be able to escalate problems to your past code or to libraries and components written by others. In few words mastering code reuse is the ability to not reinvent the wheel every day... Reuse past examples is undoubtly a good quality to own and nevertheless a good RAD practice!
Here, in this website I offer some code you can browse and reuse like I recently did (Please be aware that the display of one and the other work on this website doesn't authorize you to reuse its related code without mentioning its origin or using it against its license agreement):
PHP
PHP Mailer (LGPL license)https://github.com/PHPMailer/
Author: Brent Matzelle, Marcus Bointon, Andy Prevost and contributors
Tags: php, mailer, component
QR Code 2-D (LGPL license)
http://phpqrcode.sourceforge.net
Author: Dominik Dzienia, Kentaro Fukuchi, Phil Karn
Tags: php, QR Code, generator
Capitan Cloud (GPL, BSD or MIT license accordingly)
https://github.com/par7133/
Author: myself
Tags: github, opensource, code
Modern PHP (Fair use where permitted)
https://www.oreilly.com
Author: Josh Lockhart
Tags: php, book
PHP Advanced and Object-Oriented Programming (Fair use where permitted)
https://www.peachpit.com
Author: Larry Ullman
Tags: php, book
Javascript
jQuery (MIT license)
https://jquery.com
Author: John Resig and contributors
Tags: javascript, framework
Bootstrap (MIT license)
https://getbootstrap.com
Author: Mark Otto, Jacob Thornton and contributors
Tags: frontend, framework
jsSHA (BSD license)
http://caligatio.github.com/jsSHA/
Author: Brian Turek, Paul Johnston
Tags: javascript, encryption
js-htmlencode (MIT license)
https://github.com/emn178/js-htmlencode
Author: Chen Yi-Cyuan
Tags: javascript, library
serialize-javascript (BSD license)
https://github.com/par7133/serialize-javascript-nonpm
https://github.com/yahoo/serialize-javascript
Author: Yahoo and contributors
Tags: serialize, objects, JSON, drag-n-drop
SqueeJS (MIT license)
https://github.com/par7133/SqueeJS
Author: myself
Tags: javascript, library
Tcl/tk
Tcl/tk documentation (BSD license)https://www.tcl.tk/doc/
Author: the Tcl community
Tags: doc, examples
Tcler's Wiki (BSD license)
https://wiki.tcl-lang.org
Author: Various
Tags: articles, examples
Alited (MIT license)
https://github.com/aplsimple/alited
Author: Alex Plotnikov
Tags: ide, editor