classie.js

/*!
 * classie v1.0.1
 * class helper functions
 * from bonzo https://github.com/ded/bonzo
 * MIT license
 * 
 * classie.has( elem, 'my-class' ) -> true/false
 * classie.add( elem, 'my-new-class' )
 * classie.remove( elem, 'my-unwanted-class' )
 * classie.toggle( elem, 'my-class' )
 */

/*global define: false, module: false */

( function( window ) {

// class helper functions from bonzo https://github.com/ded/bonzo

function classReg( className ) {
  return new RegExp('(^|\\s+)' + className + '(\\s+|$)');
}

// classList support for class management
// altho to be fair, the api sucks because it won't accept multiple classes at once
var hasClass, addClass, removeClass;

if ( 'classList' in document.documentElement ) {
  hasClass = function( elem, c ) {
    return elem.classList.contains( c );
  };
  addClass = function( elem, c ) {
    elem.classList.add( c );
  };
  removeClass = function( elem, c ) {
    elem.classList.remove( c );
  };
}
else {
  hasClass = function( elem, c ) {
    return classReg( c ).test( elem.className );
  };
  addClass = function( elem, c ) {
    if ( !hasClass( elem, c ) ) {
      elem.className = elem.className + ' ' + c;
    }
  };
  removeClass = function( elem, c ) {
    elem.className = elem.className.replace( classReg( c ), ' ' );
  };
}

function toggleClass( elem, c ) {
  var fn = hasClass( elem, c ) ? removeClass : addClass;
  fn( elem, c );
}

var classie = {
  // full names
  hasClass: hasClass,
  addClass: addClass,
  removeClass: removeClass,
  toggleClass: toggleClass,
  // short names
  has: hasClass,
  add: addClass,
  remove: removeClass,
  toggle: toggleClass
};

// transport
if ( typeof define === 'function' && define.amd ) {
  // AMD
  define( classie );
} else if ( typeof exports === 'object' ) {
  // CommonJS
  module.exports = classie;
} else {
  // browser global
  window.classie = classie;
}

})( window );

classie.min.js

/*!
 * classie v1.0.1
 * class helper functions
 * from bonzo https://github.com/ded/bonzo
 * MIT license
 * 
*/
!function(s){function e(s){return new RegExp("(^|\\s+)"+s+"(\\s+|$)")}function n(s,e){var n=a(s,e)?c:t;n(s,e)}var a,t,c;"classList"in document.documentElement?(a=function(s,e){return s.classList.contains(e)},t=function(s,e){s.classList.add(e)},c=function(s,e){s.classList.remove(e)}):(a=function(s,n){return e(n).test(s.className)},t=function(s,e){a(s,e)||(s.className=s.className+" "+e)},c=function(s,n){s.className=s.className.replace(e(n)," ")});var o={hasClass:a,addClass:t,removeClass:c,toggleClass:n,has:a,add:t,remove:c,toggle:n};"function"==typeof define&&define.amd?define(o):"object"==typeof exports?module.exports=o:s.classie=o}(window);