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# Example: Using the Editor's instance

Use the Editor's instance to query the iframe

Click the buttons below to query the Editor for its contents. You can even modify the contents and click them again to see the difference.

### Working with EditorBase

`EditorBase` is not a fully functional Editor, it is simply the base utility that will be used under the hood to create an Editor.

When the Editor is created, it creates a YUI instance inside itself and attaches that instance to the editable iframe. This means that you now have the full power of YUI 3 inside the Editor iframe. You can use Event, Stylesheet, Node and even DD inside the iframe, without having to load all the JavaScript inside the document. In this example we will show how to use the internal YUI instance to get Node instances from the Editor.

Getting access to this instance is simple. Just use the `getInstance` method on the Editor instance.

### Creating the Editor

In this step we are going to do the initial render of the Editor, set its content, and focus it when it's ready.

    YUI().use('editor', function(Y) {

        //Create the Base Editor
        var editor = new Y.EditorBase({
            content: '<p><b>This is <i class="foo">a test</i></b></p><p><b style="color: red; font-family: Comic Sans MS">This is <span class="foo">a test</span></b></p>',
            extracss: '.foo { font-weight: normal; color: black; background-color: yellow; }'
        });

        //Rendering the Editor
        editor.render('#editor');

    });

### Full Example Source

#### HTML

    <div id="editor_cont">
        <div id="buttons">
            <button id="btags"># B tags?</button>
            <button id="itags"># I tags?</button>
            <button id="ctags"># with class foo?</button>
        </div>
        <div id="editor"></div>
        <div id="out">&nbsp;</div>
    </div>

#### CSS

    #editor_cont {
        width: 600px;
        border: 1px solid #999;
        margin: 2em;
        background-color: #f2f2f2;
    }
    #editor {
        height: 265px;
        background-color: #fff;
    }
    #buttons, #out {
        padding: 10px;
    }
    #buttons {
        border-bottom: 1px solid #999;
    }
    #out {
        font-weight: bold;
        border-top: 1px solid #999;
    }

#### Javascript

    YUI().use('editor', function(Y) {

        var log = function(str) {
            Y.one('#out').set('innerHTML', str);
        };

        //Create the Base Editor
        var editor = new Y.EditorBase({
            content: '<p><b>This is <i class="foo">a test</i></b></p><p><b style="color: red; font-family: Comic Sans MS">This is <span class="foo">a test</span></b></p>',
            extracss: '.foo { font-weight: normal; color: black; background-color: yellow; }'
        });
        //Rendering the Editor
        editor.render('#editor');

        Y.on('click', function(e) {
            var inst = editor.getInstance(),
                bs = inst.all('b');

            log('There are (' + bs.size() + ') B tags in the iframe.');
        }, '#btags');

        Y.on('click', function(e) {
            var inst = editor.getInstance(),
                bs = inst.all('i');

            log('There are (' + bs.size() + ') I tags in the iframe.');
        }, '#itags');

        Y.on('click', function(e) {
            var inst = editor.getInstance(),
                bs = inst.all('.foo');

            log('There are (' + bs.size() + ') items with class foo in the iframe.');
        }, '#ctags');

    });