Do I have to download jQuery on the server if I use jQuery CDN?

Question

Do I have to download the jQuery file from jQuery and put it on my server if I use the Google CDN code in my header? Is it one or the other?

Also, I know that jQuery gets updated. When jQuery gets updated, do I have to go to my older webpages and update the code, or just focus on adding the updated code to new webpages?

You shouldn't worry about jQuery updates. I don't know how often they happen but unless it's a huge update, all the functionality you could ever want is already there. — Eric Guan, Mar 16 '16 at 03:01
See: [Where do you include the jQuery library from? Google JSAPI? CDN?](http://stackoverflow.com/q/547384) — , Mar 16 '16 at 03:51

score 0 · Answer 1 · answered Mar 16 '16 at 02:59

0

No, you don't need both. The CDN is a link to the code and serves the same purpose as downloading the file to your server and using a local link. If you use the CDN, the drawback is response time. In many cases, it's faster to load a local file than a CDN.

If you want to use a newer version, you'll need to change your CDN link or your local file. However, you should test before changing JQuery version in production to ensure nothing breaks.

answered Mar 16 '16 at 02:59

devlin carnate

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Ok, thanks for that Devlin. The only question I have left is:do I have to use a newer version of Jquery on my pages if an update is available? – codermike Mar 16 '16 at 19:26
No. You only need to upgrade when there's a new feature released that you need to use. – devlin carnate Mar 16 '16 at 19:58
That makes sense. Thank you. – codermike Mar 16 '16 at 23:12

Do I have to download jQuery on the server if I use jQuery CDN?

1 Answers1