Lets play with EJS filters a bit. Lets pay greetings to the first user in the array of names with a message as "Welcome <firstname> <lastname>"
Lets take the names in an array of objects as below:
var names = [{first: 'John', last: 'Scott'},
{first: 'Rob', last: 'Miller'}];
Now lets create a filter to create the message, in this filter the first selected object will be passes, which comes from the previous filter "first"
ejs.filters.greeting = function(user){
return 'Welcome ' + user.first + ' ' + user.last + '';
};
The call to the filter is made in the index.ejs file as below, here insted of first you can can also use last filter
<%=: users | first | greeting %>
Lets see the whole program.
server.js
var express = require('express');
var io = require('socket.io');
var http = require('http');
var ejs = require('ejs');
var app = express();
var server = http.createServer(app);
var names = [{first: 'John', last: 'Scott'},
{first: 'Rob', last: 'Miller'}];
app.configure(function(){
app.use(express.bodyParser());
app.use(app.router);
app.use(express.static(__dirname + '/'));
app.set('view engine', 'ejs');
app.set('view options', {
layout: false
});
});
ejs.filters.greeting = function(user){
return 'Welcome ' + user.first + ' ' + user.last + '';
};
app.get('/', function(req, res) {
res.render('index', {
title : 'Welcome to Express EJS',
users: names
});
});
server.listen(8080);
index.ejs
<html>
<head>
<title><%= title %></title>
</head>
<body>
<p><%=: users | last | greeting %></p>
</body>
</html>
