SharePoint 2013 get current user using JavaScript

Question

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

Answer 1

To get current user info:

jQuery.ajax({
    url: _spPageContextInfo.webServerRelativeUrl + "/_api/web/currentuser",
    type: "GET",
    headers: { "Accept": "application/json;odata=verbose" }
}).done(function( data ){
    console.log( data );
    console.log( data.d.Title );
}).fail(function(){
    console.log( failed );
});

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.

Answer 3

you can use below function if you know the id of the user:

function getUser(id){
var returnValue;
jQuery.ajax({
 url: "http://YourSite/_api/Web/GetUserById(" + id + ")",
 type: "GET",
 headers: { "Accept": "application/json;odata=verbose" },
 success: function(data) {
       var dataResults = data.d;
       alert(dataResults.Title);
  }
});
}

or you can try

var listURL = _spPageContextInfo.webAbsoluteUrl + "/_api/web/currentuser";

Answer 4

try this code..

function GetCurrentUsers() {

    var context = new SP.ClientContext.get_current();
    this.website = context.get_web();
    var currentUser = website.get_currentUser();
    context.load(currentUser);
    context.executeQueryAsync(Function.createDelegate(this, onQuerySucceeded), Function.createDelegate(this, onQueryFailed));
   function onQuerySucceeded() {

       var currentUsers = currentUser.get_title();
       document.getElementById("txtIssued").innerHTML = currentUsers;

    }

    function onQueryFailed(sender, args) {
        alert('request failed ' + args.get_message() + '\n' + args.get_stackTrace());
    }   

}

Answer 5

You can use sp page context info:

_spPageContextOnfo.userLoginName

Answer 6

If you are in a SharePoint Page just use:

_spPageContextInfo.userId;