SharePoint 2013 get current user using JavaScript

Question

How to get current user name using JavaScript in Script Editor web part?

Answer 1

Here is the code that worked for me:

<script src="/SiteAssets/jquery.SPServices-2013.02a.js" type="text/javascript"></script> <script src="/SiteAssets/jquery.js" type="text/javascript"></script>  <script type="text/javascript">   var userid= _spPageContextInfo.userId;   var requestUri = _spPageContextInfo.webAbsoluteUrl + "/_api/web/getuserbyid(" + userid + ")";   var requestHeaders = { "accept" : "application/json;odata=verbose" };   $.ajax({     url : requestUri,     contentType : "application/json;odata=verbose",     headers : requestHeaders,     success : onSuccess,     error : onError   });    function onSuccess(data, request){     var loginName = data.d.Title;     alert(loginName);   }    function onError(error) {     alert("error");   } </script> 

Answer 2

I found a much easier way, it doesn't even use SP.UserProfiles.js. I don't know if it applies to each one's particular case, but definitely worth sharing.

//assume we have a client context called context. var web = context.get_web(); var user = web.get_currentUser(); //must load this to access info. context.load(user); context.executeQueryAsync(function(){     alert("User is: " + user.get_title()); //there is also id, email, so this is pretty useful. }, function(){alert(":(");}); 

Anyways, thanks to your answers, I got to mingle a bit with UserProfiles, even though it is not really necessary for my case.