how to send array values to html pages in express js

Question

i have this simple app.js using express JS\NODEJS

var express= require("express");
var path= require("path");
var app= express();    
app.use(express.static(__dirname));
var users=[ {   userName: "faizan",  password: "faizan",  email: "[email protected]"},
            {   userName: "ali",     password: "ali",     email: "[email protected]"},
            {   userName: "hussain", password: "hussain", email: "[email protected]"},
            {   userName: "hassan",  password: "hassan",  email: "[email protected]"},
];

app.get('/',function(request , response){
    response.sendFile(__dirname+ '/index.html');

});

app.get('/frmSignUp', function(request, response){
    users.push({
        userName: request.query["userName"],
        password: request.query["password"],
        email: request.query["email"]
    });
    response.sendFile(__dirname+ '/dashboard.html');
    //how can i show my user array items in my dashboard html page?? Question1

});

app.get('/frmSignIn',function(request, response)
{
    if(users.contains(request.query["userName"])) //this is invalid
// is there any way available to check userName in array that is this exists?
    response.sendFile(__dirname+ '/dashboard.html');

})

var server =app.listen(3010, function(){
    console.log("server running on port "+ server.address().port);
})

i have index SignUp SignIn and Dashboard HTML pages in root directory. i have question which are commented in above code please let me know is these thing possible for me to do??

mscdex · Accepted Answer · 2014-11-01 18:46:37Z

1

To answer your questions:

Use templates. Probably the easiest way to do this coming from existing html is to use ejs (npm install ejs first in your project root directory). Example:

app.js:

app.set('view engine', 'ejs');

// ...

app.get('/frmSignUp', function(request, response) {
  users.push({
    userName: request.query["userName"],
    password: request.query["password"],
    email: request.query["email"]
  });
  response.render('dashboard.ejs', { users: users });
});

dashboard.ejs:

<html>
  <head>
    <title>Dashboard</title>
  </head>
  <body>
    <h1>Users</h1>
    <ul>
    <% users.forEach(function(user) { %>
      <li><%= user.userName %></li>
    <% }); %>
    </ul>
  </body>
</html>

Since you have an array of objects and you're checking against a userName string, you'd need to manually loop over the users array and compare userNames.

edited Nov 1, 2014 at 18:46

answered Nov 1, 2014 at 14:58

mscdex

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3 Comments

Muhammad Faizan Khan Over a year ago

can you define first part of answer more!

Muhammad Faizan Khan Over a year ago

thank you very much but one modification require is that make a folder in root (named views) and place dashboard.js there

mscdex Over a year ago

You can change the views path if you want something different. The relevant app setting is views.

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