Change Language for current user with JSOM in SharePoint Online

Hi,

Here is code which can change language for current user with JSOM :


<script type="text/javascript" charset="utf8" src="/sites/BizDev/Style%20Library/SPS/jquery-1.11.3.min.js"></script>
<select id='LangSelect' onchange="SetUserLanguage(this.value);"></select>

<script type="text/javascript">

function SetUserLanguage(lCode)
{
    var call = $.ajax({
            url: _spPageContextInfo.siteAbsoluteUrl + "/_api/Web/Lists/GetByTitle('Languages')/items?" + "$select=Title,Code,LCode,ID&$top=5000&$filter=Code eq "+lCode,
            type: "GET",
            dataType: "json",
            headers: {
                Accept: "application/json;odata=verbose"
            }
        });

        call.done(function (data, textStatus, jqXHR) {
            var multipleValues = [];
            for (var i=0;i<data.d.results.length;i++){
                console.log(data.d.results[i].LCode);
               multipleValues.push(data.d.results[i].LCode);
            }
            //setTimeout(Blank, 2000);
           
            console.log(lCode);
            SP.SOD.executeFunc("sp.js", "SP.ClientContext", function(){
            SP.SOD.registerSod("sp.userprofiles.js", SP.Utilities.Utility.getLayoutsPageUrl("sp.userprofiles.js"));
            SP.SOD.executeFunc("sp.userprofiles.js", "SP.UserProfiles.PeopleManager", SetCurrentUserProperties);
            });
       
        var userProfileProperties;
       
        function SetCurrentUserProperties(){
           
            console.log( typeof lCode);
            //Get Current Context   
            var clientContext = SP.ClientContext.get_current();
           
            //Get Instance of People Manager Class
            var peopleManager = new SP.UserProfiles.PeopleManager(clientContext);
           
            //Get properties of the current user
            userProfileProperties = peopleManager.getMyProperties();
           
            //Get only the accountname instead of all the properties.
            clientContext.load(userProfileProperties, "AccountName");
           
            //Execute the Query.
            clientContext.executeQueryAsync(function(){
               
                //Get the account name of the current user. It will be in the following format: "i:0#.f|membership|username@yoursite.onmicrosoft.com"
                var currentUserAccountName = userProfileProperties.get_accountName();
               
                console.log(currentUserAccountName);
                //Set a single value property
                peopleManager.setSingleValueProfileProperty(currentUserAccountName, "SPS-Locale", lCode);
               
                //Set a multivalue property
                //var multipleValues = ["SharePoint", "Office 365", "Architecture"];
                console.log(multipleValues);
                peopleManager.setMultiValuedProfileProperty(currentUserAccountName, "SPS-MUILanguages", multipleValues);
               
                peopleManager.setSingleValueProfileProperty(currentUserAccountName, "AboutMe", "Value updated from JSOM!");
                //Execute the Query.
                clientContext.executeQueryAsync(function(){
                   
                    console.log("properties updated!");
                },
                function(sender,args){
                    //On Error
                    console.log(args.get_message());
                });
               
            }, function(sender,args){
                //On Error
                console.log(args.get_message());
            });
           
        }
    });

}

</script>