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Web Development with MongoDB and Node.js

You're reading from   Web Development with MongoDB and Node.js Build an interactive and full-featured web application from scratch using Node.js and MongoDB

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Product type Paperback
Published in Sep 2014
Publisher Packt
ISBN-13 9781783987306
Length 294 pages
Edition 1st Edition
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Author (1):
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Jason Krol Jason Krol
Author Profile Icon Jason Krol
Jason Krol
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Toc

Table of Contents (14) Chapters Close

Preface 1. Welcome to JavaScript in the Full Stack 2. Getting Up and Running FREE CHAPTER 3. Node and MongoDB Basics 4. Writing an Express.js Server 5. Dynamic HTML with Handlebars 6. Controllers and View Models 7. Persisting Data with MongoDB 8. Creating a RESTful API 9. Testing Your Code 10. Deploying with Cloud-based Services 11. Single Page Applications with Popular Frontend Frameworks 12. Popular Node.js Web Frameworks Index

Basic syntax for Handlebars

The basic syntax for Handlebars is really quite simple. Let's assume the following JavaScript object is passed to a Handlebars template:

var model = {
  name: 'World'
};

The template file itself will contain the following markup:

<div>
  Hello {{ name }}!
</div>

This file would render to a browser in the following way:

Hello World!

Of course, there's a lot more that you can do than just this! Handlebars also supports conditional statements:

var model = {
  name: 'World',
  description: 'This will only appear because its set.'
};

<div>
   Hello {{ name }}!<br/><br/>
  {{#if description}}
     <p>{{description}}</p>
  {{/if}}
</div>

Using an if block helper as shown in the preceding code, you can check for truthy conditionals and only display HTML and/or data if the condition is true. Alternatively, you can use the unless helper to do the opposite, and display HTML only if a condition...

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