jQuery.classList.js

jQuery.classList.js

/*
Usages: 
$(selector).classList() //returns an array of classnames
$(selector).classList('newclass') //replaces the current element's classes
$(selector).classList(['new', 'class', 'names']) //replaces the current element's classes
*/

jQuery.fn.classList = function( classNames ) {
  if ( jQuery.isArray( classNames ) ) {
    // An array was passed, join it into a string.
    classNames = classNames.join(' ')
    
  } else if ( classNames ) {
    // Individual arguments were passed, join them into a string.
    classNames = Array.prototype.join.call( arguments, ' ' );
    
  } else {
    // No arguments were passed, return an array of class names.
    return this.attr( 'class' ).split( /\s+/ );
  }
  
  // Set class names and return the original jQuery object.
  return this.attr( 'class', classNames );
};