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    µ - Microbe - 0.5.2

    Microbe build status Slack Status

    (for modern browsers and ie10+)

    microbe is a javascript library to aid in DOM manipulation aimed at speed and consistency as well as facilitating events, and data binding. It uses the micro character ( µ ) that is accessible in:

    • osx: alt + m
    • windows: alt + 0181
    • linux: alt gr + m or alt + 230

    microbe aims to be modular and expandable. It’s separated into several modules:

    • Selector engine with CSS4 selector support and base functions (find, filter, siblings, children, … )

    • Core helpers (class, extend, text, attributes … )

    • DOM helpers (append, appendTo, insertAfter, prepend … )

    • Type helpers(isUnidentified, isArray, isWindow, … )

    • HTTP helpers making use of Promises (get, post, … )

    • Data that is retrievable through the DOM. (get/set)

    • Events - binding and emitting custom events

    • See the full list in the docs

    microbes are always array-like for consistency and can be extended and merged very easily.

    Don’t hesitate to file issues and features requests! Or change things yourself and send a pull request.


    • npm i -D microbejs


    • bower install -S microbejs


    • <script src="./microbe.js"></script>

    Example use

    // all divs on the page
    var µDivs = µ( 'div' ) ;
    // create a div with the class example--class
    var newDiv = µ( '<div.example--class>' );
    // gives the class example--class to each div
    µDivs.addClass( 'example--class' );
    // all divs get a newDiv or a clone of newDiv inserted into the DOM after them
    µDivs.insertAfter( newDiv );
    // sets a custom event watch
    µDivs.on( 'toTheMoon', function( e )
        console.log( e.detail );
    } );
    // emits a custom event to all elements in µDivs with a custom data packet.
    // triggers the event listener to show the sent data
    µDivs.emit( 'toTheMoon', { moon : 'close' } );

    Dev Installation

    • Clone repo
    • Make sure node and npm is installed
    • npm install
    • npm build

    Running the tests

    From the command line:

    npm run test

    From the browser

    Available npm scripts

    • npm run build builds all 4 standard microbe versions, then builds and runs tests
    • npm run buildTests builds the tests
    • npm run deploy bumps the minor version, runs build, then builds docs
    • npm run docs builds the docs. rebuilds the docs everytime a file changes
    • npm run docsOnce build docs once
    • npm run gulp builds microbe
    • npm run http builds microbe http
    • npm run microbe builds microbe
    • npm run selectorEngine builds the microbe selector engine
    • npm run toolkit builds microbe toolkit
    • npm test runs the test suite in nightmare


    We gladly accept and review any pull-requests. Feel free! ❤️

    Otherwise, if you just want to talk, we are very easy to get a hold of!

    This project adheres to the Contributor Covenant. By participating, you are expected to honor this code.

    Microbe - Code of Conduct

    Need to report something?

    Change log


    • added .value() and tests


    • readme updates
    • repo url update
    • updated version_bump script


    • observe is fully depreciated and removed
    • observe related speed fixes in addClass, removeClass, attr, html, text, on, off, set, get
    • all builds now have their own test page for testing encapsulation
    • package.json cleaned up


    • license spells
    • added seperate http build
    • gulp and package file changes


    • fixed toolkit getter issue


    • added bower to version_bump
    • removed cdnjs-importer from dependencies
    • small www changes


    • automated version bumps to stop needing to jump multiple minor versions
    • tweaked test css
    • readme updates
    • removed watch script from package.json


    • fixed global constructor leak with pseudo

    Older Changes

    To keep the length of this file down, older changes are here


    npm i microbejs

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