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How to improve the performance of JavaScript applications

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63. Advanced SEO Optimization of Pages with JavaScript - Lately in JavaScript podcast episode 43

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The event of headless browsers and the increased ability of search engines to crawl AJAX based Web pages opened space for new SEO techniques to index better pages rendered using JavaScript.

This was one of the main topics discussed by Manuel Lemos in the episode 43 of the Lately in JavaScript podcast hangout.

They also discussed traversing DOM documents with relying on external libraries like jQuery, dynamically updating JavaScript applications with Facebook Flo, the best ways to load JavaScript asynchrnously, and Web animations support in newer browsers.

Now listen to the podcast, or watch the hangout video or read the transcript to learn more about these interesting JavaScript topics.


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43. Speed up JavaScript using HTML5 LocalStorage - Lately in JavaScript podcast episode 27

Updated on: 2013-03-05

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JavaScript can load faster if HTML5 LocalStorage is used to cache the scripts on the browser side. This was one of the main topics discussed by Manuel Lemos and Arturs Sosins in the episode 27 of the Lately in JavaScript podcast.

They also talked a new library to evaluate JavaScript code complexity, PhoneGap 2.3 improvements, the use of the strict mode in production JavaScript code, using advanced HTML5 and JavaScript based animations to get the attention of site users, the first edition of the JavaScript Programming Innovation Award.

Listen to the podcast audio, watch the video or read the transcript now to learn more about these interesting JavaScript topics.


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40. Does JavaScript Really Need OOP Classes? - Lately in JavaScript podcast episode 25

Updated on: 2013-01-08

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Ecmascript 6 is adding support to classes of objects in JavaScript like we have in other languages, but the interest of that is not consensual among the JavaScript community.

That was one of the topics discussed by Manuel Lemos and Michael Kimsal in the episode 25 of the Lately in JavaScript podcast.

They also cover other interesting JavaScript related topics like the Web Platform site, using Object Properties, writung memory efficient JavaScript, the JavaScript API you never heard of, and the new system of levels and missions implemented in the JS Classes site to make it more fun and engaging for site contributors.

Listen to the podcast, or watch the podcast video, or read the transcript now to learn more about these and other interesting JavaScript topics.


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36. The Speed of JavaScript Implementations - Lately in JavaScript podcast episode 22

Updated on: 2012-11-19

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Recently, Google released the project Octane that aims to measure the performance of different JavaScript implementations using benchmark scripts that call real world JavaScript libraries.

That was one of the main topics covered by Manuel Lemos and Michael Kimsal on the episode 22 of the Lately in JavaScript podcast.

They also talked about implementing your own version of Yahoo! Pipes using JSPlumb library, the new PHP VM to execute PHP code using JavaScript, displaying large videos on page backgrounds with BigVideo.js, a comparison between different JavaScript Physics engines, and using Cross-Domain AJAX versus JSONP.

Listen now to the podcast, or watch the podcast video, or read the podcast transcript to learn more about this an other interesting JavaScript topics.


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6. AJAX 2, Microsoft SunSpider cheating? - Lately in JavaScript podcast - Episode 3

Updated on: 2011-02-20

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On episode 3 of the Lately in JavaScript podcast, Manuel Lemos and Michael Kimsal discuss the enhancements of the XMLHttpRequest Level 2 specification.

They also discuss the allegation that Microsoft could be cheating by making IE 9 perform much better than other browsers on specific tests of the SunSpider benchmark.


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4. JavaScript performance optimization tricks - Lately in JavaScript podcast - Episode 2

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In this episode of the Lately in JavaScript podcast, Manuel Lemos and Michael Kimsal discuss an unusual technique to accelerate the load of slow pages which have content retrieved from external sites using JavaScript.

They also discuss the techniques of optimizing JavaScript code presented in the High Performance JavaScript book.

Also on this episode it is discussed the launch of the jQuery Mobile project and the new Node.js screencasts site.


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