如何将数组传递给Express中的ejs模板？

Question

I'm trying to pass an array which contains objects to views of ejs in express, but it doesn't work.

In server,

var roominfo = function(roomname){
this.roomname=roomname;
};

room_info_array= new Array(1);
room_info_array[0]=new roominfo("room");

app.get("/", function(req, res){
res.render('login',{room_info:room_info_array});
});

In client,

<script type="text/javascript">
var data = <%= JSON.stringify(room_info) %>
</script>

this shows error "Uncaught SyntaxError: Unexpected token & ".

var data = [{"roomname":"room"}]"

I tried this

<script type="text/javascript">
var data = <% JSON.stringify(room_info) %>
</script>

However this shows data is undefined.

How should I pass the array to ejs correctly?

Answer 1

In EJS echoing something is done with

<%= %>

or

<%- %>

In the last example you're not echoing anything, so nothing is passed to data and it's undefined.

In the first example you're also escaping the echoed content, so try using echoing the string unescaped as that will remove the entities.

var data = <%- JSON.stringify(room_info) %>