How to search only People using javascript (sp.search.js)?

Question

My code:
$("#searchButton").click(function () {        var keywordQuery = new Microsoft.SharePoint.Client.Search.Query.KeywordQuery(context);        keywordQuery.set_queryText($("#searchTextBox").val());        var searchExecutor = new Microsoft.SharePoint.Client.Search.Query.SearchExecutor(context); results = searchExecutor.executeQuery(keywordQuery);        context.executeQueryAsync(onQuerySuccess, onQueryError);    });        function onQuerySuccess() {        $("#resultsDiv").append('<table>');        $.each(results.m_value.ResultTables[0].ResultRows, function () {      $("#resultsDiv").append('<tr>');            $("#resultsDiv").append('<td>' + this.Author + '</td>');            $("#resultsDiv").append('<td>' + this.Title + '</td>');            $("#resultsDiv").append('</tr>');        });        $("#resultsDiv").append('</table>');    }
But this code actually find all results. How to filter to show only People results?

Answer 1

I have search the people in sharepoint online by using following code. It's work fine.I hope it's use full for some one
var targetSite = new Uri("siteURL");
            var login = "username";\\same as your email
            var password = "password";
            var securePassword = new SecureString();
            foreach (char c in password)
                securePassword.AppendChar(c);
            var onlineCredentials = new SharePointOnlineCredentials(login, securePassword);
            using (ClientContext clientContext = new ClientContext(targetSite ))
                clientContext.Credentials = onlineCredentials;
                KeywordQuery keywordQuery = new KeywordQuery(clientContext);
                keywordQuery.QueryText = "Query text";
                keywordQuery.SourceId = Guid.Parse ("B09A7990-05EA-4AF9-81EF-EDFAB16C4E31");
                SearchExecutor searchExecutor = new SearchExecutor(clientContext);
                ClientResult<ResultTableCollection> results = searchExecutor.ExecuteQuery(keywordQuery);
                clientContext.ExecuteQuery();
                foreach (var resultRow in results.Value[0].ResultRows)
                    string test = resultRow["PreferredName"].ToString();
Ravin Singh D