Emmet uses different abbreviations and short expressions depending on what's passed, and then dynamically converts the abbreviations into the full code. Emmet is mostly used for HTML, XML, and CSS, but it can also be used with programming languages.

Emmet is a free add-on for your text editor. It allows you to type shortcuts that are expanded into full code. By using Emmet, developers type less, they save both on keystrokes and time. Also relying on Emmet's auto-completion means fewer typos and missing tags, leading to more robust and valid files.