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I need to get the name of the current UI language in a javascript file. I know the following trick:


But that gets the the LCID. What I really need is the two-letter iso name (like 'en', 'fr', etc)

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up vote 5 down vote accepted

You can create a JS object and fetch the values using the LCID:

var CultureNames = { 1033:"en", 1036:"fr" };//Store it in a utility file somewhere.

var currentCultureName = CultureNames[SP.Res.lcid]; //will return 'en' if current culture is english.
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To avoid having to keep a utility file around, I eventually used javascript to read the 'lang' attribute of the 'html'-tag. With a substring I can get 'en' out of 'en-us'. The reason I did this is that I have another library which keeps languages but in the two-letter format. It's a bit silly to keep two such repositories. Now I just hope that SharePoint will continue to mention that attribute. –  Spongeroberto Squarepantalones Nov 2 '12 at 13:42
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