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        <title>$.noConflict</title>

        <meta name="author" content="Julio Biason">

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            function getVersion(variable) {
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                <section>
                    <h2>O que é $.noConflict</h2>

                    <p class='fragment'>
                        Uma função do jQuery para evitar
                        conflitos com outras bibliotecas que
                        usem "<code>$</code>" como variável.
                    </p>

                    <p class='fragment'>
                        ... incluindo o próprio jQuery.
                    </p>
                </section>

                <section>
                    <h2>Como funciona?</h2>

                    <p class='fragment'>
                        Quando o jQuery é carregado, ele verifica se
                        "<code>$</code>" já está definido e guarda internamente.
                    </p>

                    <p class='fragment'>
                        Chamando <code>$.noConflict()</code> restaura o
                        "<code>$</code>" original. "<code>$</code>" deixa
                        de ser um alías para "<code>jQuery</code>".
                    </p>
                </section>

                <section>
                    <section>
                        <h2>Como Usar?</h2>
                    </section>

                    <section>
                        <h2>... mas antes...</h2>
                        <pre><code class='javascript'>
function getVersion(variable) {
    try {
        return variable.fn.jquery;
    } catch (e) {
        return e.toString();
    }
}
                        </code></pre>
                    </section>

                    <section>
                        <div style='font-size:150%'>
                            <pre><code class='javascript' data-trim>
$.noConflict();
                            </code></pre>
                        </div>

                        <ul>
                            <li>Se havia alguma biblioteca usando "<code>$</code>", ela volta
                                a ser usada com "<code>$</code>".</li>
                            <li>jQuery deixa de ser "<code>$</code>".</li>
                            <li>jQuery ainda está disponível como "<code>jQuery</code>".</li>
                        </ul>
                    </section>

                    <section>
                        <p class='first'>
                            $.fn.jquery: <span id='ex-1-1'></span>
                        </p>

                        <p class='second'>
                            jQuery.fn.jquery: <span id='ex-1-2'></span>
                        </p>

                        <script src='http://code.jquery.com/jquery-1.11.1.min.js'></script>
                        <script>$.noConflict();</script>
                        <script>
                            document.getElementById('ex-1-1').innerHTML = getVersion($);
                            document.getElementById('ex-1-2').innerHTML = getVersion(jQuery);
                        </script>

                        <pre><code class='javascript' data-trim>
&lt;p class='first'&gt;
    $.fn.jquery: &lt;span id='ex-1-1'&gt;&lt;/span&gt;
&lt;/p&gt;

&lt;p class='second'&gt;
    jQuery.fn.jquery: &lt;span id='ex-1-2'&gt;&lt;/span&gt;
&lt;/p&gt;

&lt;script src='http://code.jquery.com/jquery-1.11.1.min.js'&gt;&lt;/script&gt;
&lt;script&gt;$.noConflict();&lt;/script&gt;
&lt;script&gt;
    document.getElementById('ex-1-1').innerHTML = getVersion($);
    document.getElementById('ex-1-2').innerHTML = getVersion(jQuery);
&lt;/script&gt;
                        </code></pre>
                    </section>

                    <section>
                        <div style='font-size:150%'>
                            <pre><code class='javascript' data-trim>
<script src='jquery.min.js'></script>
<script>
   var $novojQuery = $.noConflict();
</script>
                            </code></pre>
                        </div>

                        <ul>
                            <li>Se havia alguma biblioteca usando "<code>$</code>", ela volta
                                a ser usada com "<code>$</code>".</li>
                            <li>jQuery deixa de ser "<code>$</code>".</li>
                            <li>jQuery ainda está disponível como "<code>jQuery</code>" e
                                "<code>$novojQuery</code>".</li>
                        </ul>
                    </section>

                    <section>
                        <p class='first'>
                            $.fn.jquery: <span id='ex-2-1'></span>
                        </p>

                        <p class='second'>
                            jquery.fn.jquery: <span id='ex-2-2'></span>
                        </p>

                        <p class='third'>
                            novojQuery.fn.jquery: <span id='ex-2-3'></span>
                        </p>

                        <script src='http://code.jquery.com/jquery-1.11.1.min.js'></script>
                        <script src='http://code.jquery.com/jquery-2.1.1.min.js'></script>
                        <script>
                            var novojQuery = $.noConflict();
                            document.getElementById('ex-2-1').innerHTML = getVersion($);
                            document.getElementById('ex-2-2').innerHTML = getVersion(jQuery);
                            document.getElementById('ex-2-3').innerHTML = getVersion(novojQuery);
                        </script>

                        <pre><code class='html' data-trim>
&lt;p class='first'&gt;$.fn.jquery: &lt;span id='ex-2-1'&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p class='second'&gt;jquery.fn.jquery: &lt;span id='ex-2-2'&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p class='third'&gt;novojQuery.fn.jquery: &lt;span id='ex-2-3'&gt;&lt;/span&gt;&lt;/p&gt;

&lt;script src='http://code.jquery.com/jquery-1.11.1.min.js'&gt;&lt;/script&gt;
&lt;script src='http://code.jquery.com/jquery-2.1.1.min.js'&gt;&lt;/script&gt;
&lt;script&gt;
    var novojQuery = $.noConflict();
    document.getElementById('ex-2-1').innerHTML = getVersion($);
    document.getElementById('ex-2-2').innerHTML = getVersion(jQuery);
    document.getElementById('ex-2-3').innerHTML = getVersion(novojQuery);
&lt;/script&gt;
                        </code></pre>

                    </section>

                    <section>
                        <div style='font-size:150%'>
                            <pre><code class='javascript' data-trim>
<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script>
<script src='http://code.jquery.com/jquery-2.1.1.min.js'></script>
<script>
    $.noConflict();
    (function ($) {
        // jQuery está disponível como "$"
    })(jQuery));
</script>
                            </code></pre>
                        </div>

                        <ul>
                            <li>Na verdade, cria uma função anônima que recebe
                                o parâmetro "<code>$</code>" e chama esta função
                                passando o jQuery.</li>
                            <li>O resultado é que, dentro da função, o jQuery parece
                                ser o mesmo velho jQuery de sempre.</li>
                        </ul>
                    </section>

                    <section>
                        <p class='first'>$.fn.jquery: <span id='ex-3-1'></span></p>
                        <p class='second'>function ($): <span id='ex-3-2'></span></p>

                        <script src='http://code.jquery.com/jquery-1.11.1.min.js'></script>
                        <script src='http://code.jquery.com/jquery-2.1.1.min.js'></script>
                        <script>
                            $.noConflict();
                            (function ($) {
                                document.getElementById('ex-3-2').innerHTML = getVersion($);
                            })(jQuery);
                            document.getElementById('ex-3-1').innerHTML = getVersion($);
                        </script>

                        <pre><code class='html' data-trim>
&lt;p class='first'&gt;$.fn.jquery: &lt;span id='ex-3-1'&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p class='second'&gt;function ($): &lt;span id='ex-3-2'&gt;&lt;/span&gt;&lt;/p&gt;

&lt;script src='http://code.jquery.com/jquery-1.11.1.min.js'&gt;&lt;/script&gt;
&lt;script src='http://code.jquery.com/jquery-2.1.1.min.js'&gt;&lt;/script&gt;
&lt;script&gt;
    $.noConflict();
    (function ($) {
        document.getElementById('ex-3-2').innerHTML = getVersion($);
    })(jQuery);
    document.getElementById('ex-3-1').innerHTML = getVersion($);
&lt;/script&gt;
                        </code></pre>
                    </section>

                    <section>
                        <div style='font-size:150%'>
                            <pre><code class='javascript' data-trim>
&lt;script src='http://code.jquery.com/jquery-1.11.1.min.js'&gt;&lt;/script&gt;
&lt;script src='http://code.jquery.com/jquery-2.1.1.min.js'&gt;&lt;/script&gt;
&lt;script&gt;
   $.noConflict();
   jQuery(document).ready(function ($) {
      // jQuery está disponível aqui como "$";
   });
   // outra biblioteca disponível como "$" aqui.
&lt;/script&gt;
                            </code></pre>
                        </div>

                        <ul> 
                            <li>jQuery aparece como "<code>$</code>" apenas
                                dentro da função.</li>
                        </ul>
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