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344 lines
13 KiB
344 lines
13 KiB
<!doctype html> |
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<html lang="en"> |
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<head> |
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<meta charset="utf-8"> |
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<title>$.noConflict</title> |
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<meta name="author" content="Julio Biason"> |
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<meta name="apple-mobile-web-app-capable" content="yes" /> |
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<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" /> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"> |
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<link rel="stylesheet" href="_external/reveal.min.css"> |
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<link rel="stylesheet" href="_external/default.css" id="theme"> |
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<!-- For syntax highlighting --> |
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<link rel="stylesheet" href="_external/zenburn.css"> |
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<!-- If the query includes 'print-pdf', include the PDF print sheet --> |
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<script> |
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if( window.location.search.match( /print-pdf/gi ) ) { |
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var link = document.createElement( 'link' ); |
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link.rel = 'stylesheet'; |
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link.type = 'text/css'; |
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link.href = '_external/pdf.css'; |
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document.getElementsByTagName( 'head' )[0].appendChild( link ); |
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} |
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</script> |
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<!--[if lt IE 9]> |
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<script src="reveal.js/lib/js/html5shiv.js"></script> |
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<![endif]--> |
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<style> |
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.semi-opaque { |
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background-color: rgba(0, 0, 0, 0.7); |
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} |
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* { |
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hyphens: none !important; |
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-moz-hyphens: none !important; |
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} |
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p.first { |
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background-color: #007700; |
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} |
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p.second { |
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background-color: #0000ff; |
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} |
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p.third { |
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background-color: #770000; |
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} |
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</style> |
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<script> |
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function getVersion(variable) { |
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try { |
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return variable.fn.jquery; |
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} catch (e) { |
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return e.toString(); |
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} |
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} |
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</script> |
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</head> |
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<body> |
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<div class="reveal"> |
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<!-- Any section element inside of this container is displayed as a slide --> |
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<div class="slides"> |
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<section data-background='_images/jquery_noconflict.jpg'> |
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</section> |
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<section> |
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<h2>O que é $.noConflict</h2> |
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<p class='fragment'> |
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Uma função do jQuery para evitar |
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conflitos com outras bibliotecas que |
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usem "<code>$</code>" como variável. |
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</p> |
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<p class='fragment'> |
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... incluindo o próprio jQuery. |
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</p> |
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</section> |
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<section> |
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<h2>Como funciona?</h2> |
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<p class='fragment'> |
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Quando o jQuery é carregado, ele verifica se |
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"<code>$</code>" já está definido e guarda internamente. |
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</p> |
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<p class='fragment'> |
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Chamando <code>$.noConflict()</code> restaura o |
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"<code>$</code>" original. "<code>$</code>" deixa |
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de ser um alías para "<code>jQuery</code>". |
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</p> |
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</section> |
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<section> |
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<section> |
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<h2>Como Usar?</h2> |
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</section> |
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<section> |
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<h2>... mas antes...</h2> |
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<pre><code class='javascript'> |
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function getVersion(variable) { |
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try { |
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return variable.fn.jquery; |
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} catch (e) { |
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return e.toString(); |
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} |
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} |
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</code></pre> |
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</section> |
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<section> |
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<div style='font-size:150%'> |
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<pre><code class='javascript' data-trim> |
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$.noConflict(); |
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</code></pre> |
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</div> |
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<ul> |
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<li>Se havia alguma biblioteca usando "<code>$</code>", ela volta |
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a ser usada com "<code>$</code>".</li> |
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<li>jQuery deixa de ser "<code>$</code>".</li> |
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<li>jQuery ainda está disponível como "<code>jQuery</code>".</li> |
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</ul> |
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</section> |
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<section> |
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<p class='first'> |
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$.fn.jquery: <span id='ex-1-1'></span> |
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</p> |
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<p class='second'> |
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jQuery.fn.jquery: <span id='ex-1-2'></span> |
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</p> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script>$.noConflict();</script> |
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<script> |
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document.getElementById('ex-1-1').innerHTML = getVersion($); |
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document.getElementById('ex-1-2').innerHTML = getVersion(jQuery); |
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</script> |
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<pre><code class='javascript' data-trim> |
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<p class='first'> |
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$.fn.jquery: <span id='ex-1-1'></span> |
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</p> |
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<p class='second'> |
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jQuery.fn.jquery: <span id='ex-1-2'></span> |
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</p> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script>$.noConflict();</script> |
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<script> |
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document.getElementById('ex-1-1').innerHTML = getVersion($); |
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document.getElementById('ex-1-2').innerHTML = getVersion(jQuery); |
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</script> |
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</code></pre> |
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</section> |
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<section> |
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<div style='font-size:150%'> |
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<pre><code class='javascript' data-trim> |
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<script src='jquery.min.js'></script> |
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<script> |
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var $novojQuery = $.noConflict(); |
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</script> |
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</code></pre> |
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</div> |
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<ul> |
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<li>Se havia alguma biblioteca usando "<code>$</code>", ela volta |
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a ser usada com "<code>$</code>".</li> |
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<li>jQuery deixa de ser "<code>$</code>".</li> |
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<li>jQuery ainda está disponível como "<code>jQuery</code>" e |
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"<code>$novojQuery</code>".</li> |
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</ul> |
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</section> |
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<section> |
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<p class='first'> |
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$.fn.jquery: <span id='ex-2-1'></span> |
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</p> |
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<p class='second'> |
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jquery.fn.jquery: <span id='ex-2-2'></span> |
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</p> |
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<p class='third'> |
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novojQuery.fn.jquery: <span id='ex-2-3'></span> |
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</p> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script src='http://code.jquery.com/jquery-2.1.1.min.js'></script> |
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<script> |
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var novojQuery = $.noConflict(); |
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document.getElementById('ex-2-1').innerHTML = getVersion($); |
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document.getElementById('ex-2-2').innerHTML = getVersion(jQuery); |
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document.getElementById('ex-2-3').innerHTML = getVersion(novojQuery); |
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</script> |
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<pre><code class='html' data-trim> |
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<p class='first'>$.fn.jquery: <span id='ex-2-1'></span></p> |
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<p class='second'>jquery.fn.jquery: <span id='ex-2-2'></span></p> |
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<p class='third'>novojQuery.fn.jquery: <span id='ex-2-3'></span></p> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script src='http://code.jquery.com/jquery-2.1.1.min.js'></script> |
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<script> |
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var novojQuery = $.noConflict(); |
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document.getElementById('ex-2-1').innerHTML = getVersion($); |
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document.getElementById('ex-2-2').innerHTML = getVersion(jQuery); |
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document.getElementById('ex-2-3').innerHTML = getVersion(novojQuery); |
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</script> |
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</code></pre> |
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</section> |
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<section> |
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<div style='font-size:150%'> |
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<pre><code class='javascript' data-trim> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script src='http://code.jquery.com/jquery-2.1.1.min.js'></script> |
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<script> |
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$.noConflict(); |
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(function ($) { |
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// jQuery está disponível como "$" |
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})(jQuery)); |
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</script> |
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</code></pre> |
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</div> |
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<ul> |
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<li>Na verdade, cria uma função anônima que recebe |
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o parâmetro "<code>$</code>" e chama esta função |
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passando o jQuery.</li> |
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<li>O resultado é que, dentro da função, o jQuery parece |
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ser o mesmo velho jQuery de sempre.</li> |
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</ul> |
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</section> |
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<section> |
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<p class='first'>$.fn.jquery: <span id='ex-3-1'></span></p> |
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<p class='second'>function ($): <span id='ex-3-2'></span></p> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script src='http://code.jquery.com/jquery-2.1.1.min.js'></script> |
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<script> |
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$.noConflict(); |
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(function ($) { |
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document.getElementById('ex-3-2').innerHTML = getVersion($); |
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})(jQuery); |
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document.getElementById('ex-3-1').innerHTML = getVersion($); |
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</script> |
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<pre><code class='html' data-trim> |
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<p class='first'>$.fn.jquery: <span id='ex-3-1'></span></p> |
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<p class='second'>function ($): <span id='ex-3-2'></span></p> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script src='http://code.jquery.com/jquery-2.1.1.min.js'></script> |
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<script> |
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$.noConflict(); |
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(function ($) { |
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document.getElementById('ex-3-2').innerHTML = getVersion($); |
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})(jQuery); |
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document.getElementById('ex-3-1').innerHTML = getVersion($); |
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</script> |
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</code></pre> |
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</section> |
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<section> |
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<div style='font-size:150%'> |
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<pre><code class='javascript' data-trim> |
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<script src='http://code.jquery.com/jquery-1.11.1.min.js'></script> |
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<script src='http://code.jquery.com/jquery-2.1.1.min.js'></script> |
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<script> |
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$.noConflict(); |
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jQuery(document).ready(function ($) { |
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// jQuery está disponível aqui como "$"; |
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}); |
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// outra biblioteca disponível como "$" aqui. |
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</script> |
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</code></pre> |
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</div> |
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<ul> |
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<li>jQuery aparece como "<code>$</code>" apenas |
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dentro da função.</li> |
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</ul> |
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</section> |
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</section> |
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<section data-background='_images/thats-all-folks.jpg'> |
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<section></section> |
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</section> |
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</div> |
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</div> |
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<script src="_external/head.min.js"></script> |
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<script src="_external/reveal.min.js"></script> |
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<script> |
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// Full list of configuration options available here: |
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// https://github.com/hakimel/reveal.js#configuration |
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Reveal.initialize({ |
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controls: true, |
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progress: true, |
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history: true, |
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center: true, |
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theme: 'default', |
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transition: 'linear', |
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// Optional libraries used to extend on reveal.js |
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dependencies: [ |
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{ src: '_external/classList.js', condition: function() { return !document.body.classList; } }, |
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{ src: '_external/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } }, |
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{ src: '_external/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } }, |
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{ src: '_external/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } }, |
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{ src: '_external/zoom.js', async: true, condition: function() { return !!document.body.classList; } }, |
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{ src: '_external/notes.js', async: true, condition: function() { return !!document.body.classList; } } |
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] |
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}); |
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</script> |
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</body> |
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</html>
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