{"id":11578,"date":"2014-01-31T16:12:35","date_gmt":"2014-01-31T10:42:35","guid":{"rendered":"http:\/\/www.tothenew.com\/blog\/?p=11578"},"modified":"2014-01-31T16:12:35","modified_gmt":"2014-01-31T10:42:35","slug":"using-ejs-in-your-node-js-application","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/using-ejs-in-your-node-js-application\/","title":{"rendered":"Using EJS in your Node.JS application"},"content":{"rendered":"

EJS as the name implies embedded JavaScript, is a JavaScript templating library used to render html code along with JSON data in an easy and clean way.<\/p>\n

In a Node.JS application(here we are using an express<\/a> application), you need to set the value of ‘view engine’ parameter to ‘ejs’.<\/p>\n

[js]
\nvar app = express();
\napp.set(‘view engine’, ‘ejs’);
\n[\/js]<\/p>\n

Now request goes to backend, a function is called there which renders the ejs file:
\n[js] res.render(‘demo’, {data:data})[\/js]<\/p>\n

Lets say it returns JSON data like:
\n{name: 'Sakshi', age : '24', hobbies: ['blogging', 'reading']}
\n<\/code><\/p>\n

Now the final step, Rendering the ejs file. Our demo.ejs looks like:<\/p>\n

[js]
\n<html>
\n <body>
\n <br\/>
\n <h2>EJS Demo!!!<\/h2>
\n <div>Name : <%= data.name%><\/div>
\n <div>Age : <%= data.age%><\/div>
\n <\/body>
\n<\/html>
\n[\/js]<\/p>\n

Output:
\nName: Sakshi
\n Age: 24
\n<\/code><\/p>\n

Some useful ejs tags are:
\n1. <% ><\/strong> : This tag executes all the JavaScript code present inside it. So we can easily use for loops, if\/else statements, switch statements and variable declarations inside the EJS template.
\nFor examlpe:
\n[js]
\n <table>
\n <tr>
\n <th>Name<\/th>
\n <th>Age<\/th>
\n <th>Email<\/th>
\n <\/tr>
\n<% result.forEach(function(obj){ %>
\n <tr>
\n <td><%=obj.name%><\/td>
\n <td><%=obj.age%><\/td>
\n <td><%=obj.email%><\/td>
\n <\/tr>
\n <%})%>
\n<\/table>
\n[\/js]<\/p>\n

2. <%= ><\/strong> : The value of the variable present between this tag is printed as it is given by JSON data.<\/p>\n

3. <%- ><\/strong> : This tag renders the actual html code present between it.
\nFor example:
\nJSON data = {myPage : “<html><body><h3>Hello World<\/h3><\/body><\/html>”}<\/p>\n

So for rendering this html code we use:
\n[js]
\n<div><%- myPage><\/div>
\n[\/js]<\/p>\n

4. <%== ><\/strong> : This tag is commonly used to include templates in other templates.<\/p>\n

NOTE<\/strong>: EJS also allow us to include another ejs template or file into our current ejs page. This can be done using <% include otherPage.ejs %>.<\/p>\n

Hope this will help \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"

EJS as the name implies embedded JavaScript, is a JavaScript templating library used to render html code along with JSON data in an easy and clean way. In a Node.JS application(here we are using an express application), you need to set the value of ‘view engine’ parameter to ‘ejs’. [js] var app = express(); app.set(‘view […]<\/p>\n","protected":false},"author":65,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":34,"footnotes":""},"categories":[1],"tags":[1294,1124],"class_list":["post-11578","post","type-post","status-publish","format-standard","hentry","category-technology","tag-ejs","tag-node-js"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t