microbe.js is a small modular library based on jquery syntax, but written from the ground up. It's faster than jquery in most tests (http://m.icro.be/tests/), handles css4 selectors, and it's output is built to be consistent.
current modules include :
+ Selector engine with CSS4 selector support and base functions (find, filter, siblings, children, … )
+ Core helpers (class, extend, text, attributes … )
+ DOM helpers (append, insertAfter, prepend … )
+ Type helpers(isUnidentified, isArray, isWindow, … )
+ HTTP helpers making use of Promises (get, post, … )
+ Object.observe watches objects for changes. It can also watch itself for changes in element get/set data
+ Events - binding and emitting custom events
I'd love for people to try it, use it, and contribute to build a community!
microbe website - http://m.icro.be
microbe github - https://github.com/sociomantic/microbe
microbe npm - https://www.npmjs.com/package/microbejs
Sociomantic Blog - https://www.sociomantic.com/blog/2015/09/open-source-microbe-js/#.VgEKwyCqpBc