Emmet takes the snippets idea to a whole new level: you can type CSS-like expressions that can be dynamically parsed, and produce output depending on what you type in the abbreviation. Emmet is developed and optimised for web-developers whose workflow depends on HTML/XML and CSS, but can be used with programming languages too
jsdo.it - share JavaScript, HTML5 and CSS - jsdo.it is a service to write JavaScript, HTML5, CSS in your browser and share it. You can copy and modify others' code. And also Ask questions about JavaScript, HTML5, CSS