ref="../gitbook/plugins/gitbook-plugin-edit-link/plugin.css">
        
    
    

        
    
    
    <link rel="next" href="../refguide/modifiers.html" />
    
    
    <link rel="prev" href="../refguide/is-reactive.html" />
    

        
    </head>
    <body>
        
        
    <div class="book" data-level="4.2" data-basepath=".." data-revision="Thu Oct 01 2015 21:51:50 GMT+0200 (CEST)">
    

<div class="book-summary">
    <div class="book-search">
        <input type="text" placeholder="Type to 