General / jQuery / PHP / Programmings

Best way to speed up Javascript (specifically jQuery) load times

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Will Lawrence's Blog

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The obvious way is to use a popular CDN, short for Content Delivery Network, such as Google’s. Dave Ward explains the reasons very well in his article, “3 reasons why you should let Google host jQuery for you” and his three main points are:

  1. Decreased Latency – CDN allows the download to occur from the closest server to the user.
  2. Increased Parallelism – The local web server can be serving up content while the other connection is pulling from Google.
  3. Better Caching – Since so many other sites are using Google’s CDN, the user may already have the jQuery or javascript file in their cache.

However, there is a caveat. What if the connection to Google goes down? Can your site survive without jQuery? It should, if you developed the site with a responsive design and progressive enhancement.

The answer is to fall back to a local…

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