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“It’s not you, It’s me”

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How to avoid being coupled with a Javascript framework.

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Even if you loved it. Even if it was the right one.

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Even if you loved it. Even if it was the right one.

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Hello, who’s speaking? Marco Cedaro @cedmax

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About me... Frontend Cowboy Nicola Vitto Jr. Hello, who’s speaking? Marco Cedaro @cedmax

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About me... Frontend Cowboy Nicola Vitto Jr. Javascript Pervert Roberto Felter Hello, who’s speaking? Marco Cedaro @cedmax

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About me... Frontend Cowboy Nicola Vitto Jr. Javascript Pervert Roberto Felter Marco.. who? basically anyone else Hello, who’s speaking? Marco Cedaro @cedmax

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Actually I am: a Frontend Developer at Spreaker.com Hello, who’s speaking? Marco Cedaro @cedmax

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Actually I am: a Frontend Developer at Spreaker.com Conference organizer with From The Front Hello, who’s speaking? Marco Cedaro @cedmax

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Actually I am: a Frontend Developer at Spreaker.com Conference organizer with From The Front and a javascript pervert Hello, who’s speaking? Marco Cedaro @cedmax

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http://welovestyles.com/love-pictures/

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http://welovestyles.com/love-pictures/ http://everyoneneedsanalgonquin.com/2012/03/25/fruit-season/

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General Purpose Frameworks http://geekadelphia.com/2008/05/01/sick-ink-brah-alex-hillmans-geeky-love-hate-tattoos/

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ABOUT LOVE #1 Love is a given, hatred is acquired. Doug Horton

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Definition frame·work n. A structure for supporting or enclosing something else, especially a skeletal support used as the basis for something being constructed. gen·er·al-pur·pose adj. Designed for or suitable to more than one use; broadly useful.

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A little history http://mattstone.blogs.com/photos/christian_art_genesis/adam-eve-and-the-tree.html

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Once upon a time code snippet “dhtml” if (document.all) http://creativecriminals.com/print/scotch-tape-beyond-strong/

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Then

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Then

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Then

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Then

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Then

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That awkward moment...

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That awkward moment...

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Now

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Why did they get so popular? DOM access Cross browser implementation Shorthands Community scripts

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Drawbacks

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Community Support

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Updating is a mess

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Long life cycle websites General purpose framework may seem the right solution to handle complexity http://sproutsocial.com/insights/2011/11/how-to-iphone-ipad-friendly/ - http://pressganger.blogspot.it/2012/03/blog-progress-update.html - http://news.brothersoft.com/internet-explorer-10-focuses-html5-improves-performance-16036.html

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Long life cycle websites General purpose framework may seem the right solution to handle complexity New browser, new framework version http://sproutsocial.com/insights/2011/11/how-to-iphone-ipad-friendly/ - http://pressganger.blogspot.it/2012/03/blog-progress-update.html - http://news.brothersoft.com/internet-explorer-10-focuses-html5-improves-performance-16036.html

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Long life cycle websites General purpose framework may seem the right solution to handle complexity New browser, new framework version How many patches did you make in your framework over years? http://sproutsocial.com/insights/2011/11/how-to-iphone-ipad-friendly/ - http://pressganger.blogspot.it/2012/03/blog-progress-update.html - http://news.brothersoft.com/internet-explorer-10-focuses-html5-improves-performance-16036.html

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Short life cycle websites Counterintuitively situation is even worse http://www.cnbc.com/id/46994692/The_Worst_Jobs_for_2012 - http://indiatransportportal.com/india-transport-studies/

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Short life cycle websites Counterintuitively situation is even worse Less analysis and foresight http://www.cnbc.com/id/46994692/The_Worst_Jobs_for_2012 - http://indiatransportportal.com/india-transport-studies/

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Short life cycle websites Counterintuitively situation is even worse Less analysis and foresight Did you make any patch in your framework over years? http://www.cnbc.com/id/46994692/The_Worst_Jobs_for_2012 - http://indiatransportportal.com/india-transport-studies/

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Our job is evolving

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It's the browser, baby

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It's the browser, baby

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Some of them are just not built for maintainability

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Some of them are just not built for simplicity

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Some of them are just not built for love

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Code Portability

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case study Own scripts built on a known framework http://www.naba.it/newsletter_09_10/naba_n184.html - http://sevenspark.com/product/agility-responsive-minimal-html5-template/ - http://middleclasshell.com/republicans-ignore-catholics-when-it-comes-to-unemployment-benefits

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case study Own scripts built on a known framework Brand new website with responsive design http://www.naba.it/newsletter_09_10/naba_n184.html - http://sevenspark.com/product/agility-responsive-minimal-html5-template/ - http://middleclasshell.com/republicans-ignore-catholics-when-it-comes-to-unemployment-benefits

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case study Own scripts built on a known framework Brand new website with responsive design same old bloat code over 3g? http://www.naba.it/newsletter_09_10/naba_n184.html - http://sevenspark.com/product/agility-responsive-minimal-html5-template/ - http://middleclasshell.com/republicans-ignore-catholics-when-it-comes-to-unemployment-benefits

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$LAB .script("jquery.js").wait() .script("scripts.js") $LAB .script("xui.js").wait() .script("scripts.js") Desktop Mobile

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$LAB .script("jquery.js").wait() .script("scripts.js") $LAB .script("xui.js").wait() .script("scripts.js") Desktop Mobile

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It's the browser, baby

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and the devices http://www.newfangled.com/mobile_technology_and_web_enhanced_devices

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and the devices http://www.newfangled.com/mobile_technology_and_web_enhanced_devices

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We need our code to be PORTABLE

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We need our code to be PORTABLE but how?

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DISCLAIMER http://www.destructoid.com/disappointment-a-postmortem-of-l-a-noire-224486.phtml

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Go Vanilla http://s394.photobucket.com/albums/pp28/cojohn55/?action=view&current=tasty-thursday-187-lets-get-naked.gif&mediafilter=images

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LOVE FACT #2 What is known as a French Kiss in the English speaking world is called an English Kiss in France.

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Loops

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_.each(items, function(item, i) { [...] }); Ext.each(items, function(item, i) { [...] }); $.each(items, function(i, item) { [...] }); items.each(function(item, i) { [...] });

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_.each(items, function(item, i) { [...] }); Ext.each(items, function(item, i) { [...] }); $.each(items, function(i, item) { [...] }); items.each(function(item, i) { [...] });

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_.each(items, function(item, i) { [...] }); Ext.each(items, function(item, i) { [...] }); $.each(items, function(i, item) { [...] }); items.each(function(item, i) { [...] });

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$.each(items, function(i, item) { [...] });

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for (var i = 0; i < items.length; i++) { [...] }; $.each(items, function(i, item) { [...] });

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for (var i = 0; i < items.length; i++) { [...] }; $.each(items, function(i, item) { [...] });

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operations per second (higher is better)

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yes, but... http://www.funnyjunk.com/funny_pictures/3454040/Guess+what/

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you should http://www.behaviorgap.com/sketch/things-you-can-control/

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operations per second (higher is better)

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operations per second (higher is better)

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for (var i = 0; i < items.length; i++) { [...] };

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for (var i = 0; i < items.length; i++) { [...] }; var len = items.length; for (var i = 0; i < len; i++) { [...] };

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for (var i = 0; i < items.length; i++) { [...] }; var len = items.length; for (var i = 0; i < len; i++) { [...] };

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for (var i = -1; ++i < items.length;) { [...] };

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for (var i = -1; ++i < items.length;) { [...] };

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for (var i = -1; ++i < items.length;) { [...] };

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for (var i = -1; ++i < items.length;) { [...] }; var len = items.length; for (var i = -1; ++i < len;) { [...] };

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for (var i = -1, item;item = items[++i];) { [...] };

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for (var i = -1, item;item = items[++i];) { [...] };

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for (var i = -1, item;item = items[++i];) { [...] };

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var i = 0; while (i < items.length) { [...] i++; };

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var i = 0, len = items.length; while (i < len) { [...] i++; };

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Vanilla Loops PROS A lot of options Performance Benefits CONS mmm...

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wait, what? too many characters?? http://screenrant.com/game-thrones-episode-7-recap-spoilers-benm-117660/

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Zip It! http://screenrant.com/austin-powers-4-2-ross-50006/

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...and minify http://www.destentor.nl/algemeen/show/3347136/Minime-sleept-site-voor-rechter-om-sexvideo.ece

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Yeah, baby, yeah http://www.destentor.nl/algemeen/show/3347136/Minime-sleept-site-voor-rechter-om-sexvideo.ece

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Context Binding

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var conf = { name: "jsDay", clicked: function(event) { alert(this.name); } } myElm.onclick = conf.clicked;

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var conf = { name: "jsDay", clicked: function(event) { alert(this.name); } } myElm.onclick = conf.clicked;

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var conf = { name: "jsDay", clicked: function(event) { alert(this.name); } } myElm.onclick = conf.clicked;

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var conf = { name: "jsDay", clicked: function(event) { alert(this.name); } } myElm.onclick = conf.clicked;

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var conf = { name: "jsDay", clicked: function(event) { alert(this.name); } } myElm.onclick = conf.clicked;

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conf.clicked.bind(conf) conf.clicked.createDelegate(conf); $.proxy(conf.clicked, conf); conf.clicked.bind(conf)

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conf.clicked.bind(conf) conf.clicked.createDelegate(conf); $.proxy(conf.clicked, conf); conf.clicked.bind(conf)

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conf.clicked.bind(conf) conf.clicked.createDelegate(conf); $.proxy(conf.clicked, conf); conf.clicked.bind(conf)

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myElm.onclick = (function(context){ return function(){ conf.clicked.apply(context, arguments) } })(conf);

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myElm.onclick = (function(context){ return function(){ conf.clicked.apply(context, arguments) } })(conf);

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myElm.onclick = (function(context){ return function(){ conf.clicked.apply(context, arguments) } })(conf);

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myElm.onclick = (function(context){ return function(){ conf.clicked.apply(context, arguments) } })(conf);

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myElm.onclick = (function(context){ return function(){ conf.clicked.apply(context, arguments) } })(conf);

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myElm.onclick = (function(context){ return function(){ conf.clicked.apply(context, arguments) } })(conf);

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argh, my eyes are bleeding.. http://www.accessexcellence.org/AE/mspot/tbs/episode3a/ep3a06.php

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MyNS.bind = function(func, context) { return function() { func.apply(context, arguments); }; }

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MyNS.bind = function(func, context) { return function() { func.apply(context, arguments); }; }

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MyNS.bind = function(func, context) { return function() { func.apply(context, arguments); }; }

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MyNS.bind = function(func, context) { return function() { func.apply(context, arguments); }; }

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MyNS.bind = function(func, context) { return function() { func.apply(context, arguments); }; }

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MyNS.bind = function(func, context) { return function() { func.apply(context, arguments); }; } myElm.onclick = MyNS.bind(conf.clicked, conf);

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MyNS.bind = function(func, context) { return function() { func.apply(context, arguments); }; } myElm.onclick = $.proxy(conf.clicked, conf); myElm.onclick = MyNS.bind(conf.clicked, conf);

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AAAARGGGHHH http://digitivity.org/1044/rss-kill-your-productivity-make-you-insane-waste-time

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MyNS.bind = function(func, context) { } myElm.onclick = MyNS.bind(conf.clicked, conf); return function() { return func.apply(context, arguments); };

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MyNS.bind = function(func, context) { } myElm.onclick = MyNS.bind(conf.clicked, conf); $.proxy(func, context);

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Design Patterns http://failblog.org/vote

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Wrapper Pattern

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Wrapper Pattern http://www.pinkblog.it/post/8396/comprare-i-preservativi-vi-imbarazza

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http://clericalwhispers.blogspot.it/2010/09/popes-anti-condom-message-is-sabotage.html sorry I should have said it was NSFW and, moreover...

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sorry if it might have been NSFW and, moreover... http://clericalwhispers.blogspot.it/2010/09/popes-anti-condom-message-is-sabotage.html

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var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; [...] } var myEff = new AwesomeEffect("myId", { duration: 100, delay: 1000 }); //{delay: 1000, duration:100, transition: "easeOut"};

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var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; [...] } var myEff = new AwesomeEffect("myId", { duration: 100, delay: 1000 }); //{delay: 1000, duration:100, transition: "easeOut"};

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var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; [...] } var myEff = new AwesomeEffect("myId", { duration: 100, delay: 1000 }); //{delay: 1000, duration:100, transition: "easeOut"};

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var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; [...] } var myEff = new AwesomeEffect("myId", { duration: 100, delay: 1000 }); //{delay: 1000, duration:100, transition: "easeOut"};

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var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; [...] } var myEff = new AwesomeEffect("myId", { duration: 100, delay: 1000 }); //{delay: 1000, duration:100, transition: "easeOut"};

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var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; [...] } var myEff = new AwesomeEffect("myId", { duration: 100, delay: 1000 }); //{delay: 1000, duration:100, transition: "easeOut"};

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_.extend(default, config); Ext.apply(default, config); $.extend(default, config); Object.extend(default, config);

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MyNS.extend = function(destination, source) { } var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; var options = MyNS.extend(default, config); [...] } $.extend(default, config);

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MyNS.extend = function(destination, source) { } var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; var options = MyNS.extend(default, config); [...] } $.extend(default, config);

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MyNS.extend = function(destination, source) { } var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; var options = MyNS.extend(default, config); [...] } Ext.apply(default, config);

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MyNS.extend = function(destination, source) { } var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; var options = MyNS.extend(default, config); [...] } _.extend(default, config);

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MyNS.extend = function(destination, source) { } var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; var options = MyNS.extend(default, config); [...] } Object.extend(default, config);

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Wasn’t it bad to delegate? http://clericalwhispers.blogspot.it/2010/09/popes-anti-condom-message-is-sabotage.html

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MyNS.extend = function(destination, source) { } var AwesomeEffect = function(id, config){ var default = { delay: 0, duration: 500, transition: "easeOut", }; var options = MyNS.extend(default, config); [...] } $.extend(default, config);

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MyNS.Layer = function(content, config){ config = MyNS.extend({ overlayOpacity:0.6, imageLoading: "/img/loader.gif", }, config); new LightBox(content, config); }

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MyNS.Layer = function(content, config){ config = MyNS.extend({ overlayOpacity:0.6, imageLoading: "/img/loader.gif", }, config); new LightBox(content, config); }

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MyNS.Layer = function(content, config){ config = MyNS.extend({ overlayOpacity:0.6, imageLoading: "/img/loader.gif", }, config); new LightBox(content, config); }

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MyNS.Layer = function(content, config){ config = MyNS.extend({ opacity: true, modal: true, }, config); new FancyBox(content, config); }

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MyNS.Layer = function(content, config){ config = MyNS.extend({ opacity: true, modal: true, }, config); new FancyBox(content, config); }

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MyNS.Layer = function(content, config){ config = MyNS.extend({ opacity: true, modal: true, }, config); new FancyBox(content, config); }

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Event Driven Design

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MyNS.Layer = function(content, config){ [...] }

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MyNS.Layer("Sorry, an error occured");

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MyNS.notify("error", { msg: "Sorry, an error occured" });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.notify("error", { msg: "Sorry, an error occured" }); MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); });

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MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); }); Advantages

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MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); }); Advantages Semantic

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MyNS.listen("error", function(payload){ MyNS.Layer(payload.msg); }); Advantages Semantic More Flexible

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Advantages Unpluggable

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MyNS.notify("error", { msg: "Sorry, an error occured" });

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almost decoupled http://thewellversed.com/2010/12/09/love-warranties-they-dont-make-them-like-they-used-to/broken-heart/

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What about the dom?

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Actually decoupled http://thewellversed.com/2010/12/09/love-warranties-they-dont-make-them-like-they-used-to/broken-heart/

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Ain’t that bad http://locomente.blogspot.it/2012/02/single-unemployed.html

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LOVE FACT #3 2 out of 5 people marry their first love.

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Advantages of this approach

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Portability & Maintainability http://news.tecnozoom.it/tv-lcd/piu-persone-usano-tv-ed-internet-contemporaneamente-post-16157.html - http://marine.rina.org/CATEGORIE_SERVIZI/Gestione_rischio/servizi/maintenance.aspx

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Build our own architecture http://www.alegriphotos.com/Cards_castle-lphoto-ce5fe99d397c7bf789b6b43d64bf5683.html

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Improve javascript skills http://edtechdigest.wordpress.com/2010/09/06/6-reasons-why-students-need-21st-century-skills/

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You got me, I will drop my framework

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are you sure? http://loveallit.tumblr.com/post/1044567068/jegushi-please-dont-leave-me

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it might be the right one http://loveallit.tumblr.com/post/1044567068/jegushi-please-dont-leave-me

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the whole point is

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BE A JAVASCRIPT PERVERT

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play with javascript discover your limits BE A JAVASCRIPT PERVERT

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play with javascript discover your limits BE A JAVASCRIPT PERVERT

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play with javascript discover your limits BE A JAVASCRIPT PERVERT get to know microframeworks

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play with javascript discover your limits BE A JAVASCRIPT PERVERT get to know microframeworks let github be your playground

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play with javascript discover your limits BE A JAVASCRIPT PERVERT get to know microframeworks let github be your playground javascript is fun

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play with javascript discover your limits BE A JAVASCRIPT PERVERT get to know microframeworks let github be your playground javascript is fun javascript is lovable

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play with javascript discover your limits BE A JAVASCRIPT PERVERT get to know microframeworks let github be your playground javascript is fun javascript is lovable but you need to...

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know when to stop

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love your framework [email protected] http://cedmax.com @cedmax https://bit.ly/saybanana https://bit.ly/ratebanana