I want to set the value entered for url_for in javascript_tag

<%=javascript_tag do%>
jQuery(function($){
  $('input[id^="multi_entry_user_id"]').focusout(function(e){
    $.ajax({
      type: "GET",
      url: "<%=juser_json_multi_entries_url(User.first, format::json)%>",
      data —e.target.value,
      dataType: "script",
      callback: null,
      success: function(data, status, xhr) {
        console.log('hoge success:'+status);
      },
      error: function(data, status, xhr) {
        console.log('hoge error:'+status);
      }
    });
  });
});
<%end%>