Cache para objetos jQuery Referência: https://coderwall.com/p/q19via JSPerf: http://jsperf.com/jquery-cached-domcache

cache_jquery.js

$c = (function( $ ) {
  var DOMCACHESTORE = {};
  
  return function( selector, force ) {
    if ( force || undefined === DOMCACHESTORE[selector] ) {
      DOMCACHESTORE[selector] = $(selector);
    }
    
    return DOMCACHESTORE[selector];
  };
})( jQuery );

como_usar.js

$c( 'h2' ).addClass( 'secondary-title' ).text( 'Title' );