javascript - How to get session data in .js file -

in application when user login particular user id stored in session. want id in js file.in js file contain state provider,factory etc

js

  var sessionvalue = "'"+<%=session["userid"]%>+"'"   alert(sessionvalue) 

but show error(unexpected)

1.you can assign session value hidden field.

<input type="hidden" name="userid" id="userid" value="<%= session["userid"] %>"> 

2. get hidden field value javascript function.

function getuserid() {     var userid = document.getelementbyid('userid').value;     alert(userid); }