如何在ejs模板中使用if条件

Question

Server Code

Details['11'] = {
            'id': '11',
            'name': 'Avanish'
        };
res.render('/index',{'Message': Details});

Page code

        <script>
           var ERRORCONST = 'Error';
           var NORECORDS = 'No records';
        </script>

<%if(Message != undefined && Message != NORECORDS && Message != ERRORCONST ){%>
<%Message.forEach(function(key){%>
<span><%= key.id %> - <%= key.name %></span>
<%});%>
<%}%>

Getting error NORECORDS is not defined and print all code on page. I have two error. One is how to use Multiple condition in single if statement and second is how to compare javascript varibale with server variable

Answer 1

        <% var ERRORCONST = 'Error';
           var NORECORDS = 'No records'; %>

In ejs template please use constant like this.

You can not compare ejs variable and local script variable.