Technology  |  Web

Important Practices to Consider For Rich Web Applications

Web Apps
If you are running a business website and want to make use of JavaScript to control its UI, there are some actionable principles that you should consider in your mind.
In the last couple of years, JavaScript becomes an important tool for fronted developers as the usage of this high-end language is expanding into other areas also like servers and microcontrollers.
In addition to this, JavaScript is the language of choice for launching computer science concepts by esteemed universities. Still, there are numerous questions about the role and usage on the web remains secrecy, even to a lot of framework and library authors.
So, what is the main question in mind? Should JavaScript used to replace browser functions such as page rendering, history and navigation?

  • Are Single Page Apps (SPAs) the future?
  • Is the backend dying? Should I leave to HTML completely?
  • Is JavaScript theoretical to develop pages for websites, but make pages in web applications?
  • What is the exact difference between a website and a web application?
  • Should techniques like PJAX or TurboLinks be used?

Use jQuery

As we all know that jQuery is one of the best things that happened to JavaScript since it got the first class functions in version 1.2. The library of this language is completely best and powerful and has the right level of concept for working with the DOM.
Well, there is nothing to say more about it; you just have to learn it and use it. However, good resources are my view of the jQuery API and the jQuery API.

Learn JavaScript

The most essential language of the web that you should learn is JavaScript, so you should learn it. As compare to other programming languages, JavaScript is a lot different as it is dynamic and comes with prototypical legacy. It works like scheme than any other languages that you are mostly used to.

Learn CSS

A lot of programmers and developers are thinking that CSS is one such language that is for designers, but this is not the case. CSS is the language that you can communicate if you have a designer on your team.
This wonderful language has the interface between developers and designers. And as a programmer, it is must to know that it is a lot better than the designers. You can eliminate the confusion between you and your designer when knowing CSS.
However, there are lots of designers, who do not mind about how code looks only if the design is looking good on the surface.
It is also up to you to keep the HTML clean, and the best way do this is make use of semantic HTML combined with CSS. It is an extra advantage that you will become better at jQuery.
You Should Also Decide About How Rich your App Must Be:
You know that how rich your application must be? The level varies from no JavaScript to only JavaScript, but possibly you wanted to land somewhere in between. Below you can find some of the suggestions:

  • No JavaScript, everything is server created.
  • Single page per area, whole area is handled by JavaScript.
  • Only JavaScript & Ajax Interaction with the Server
  • Vaguely improved pages and simple validations, but no Ajax.

An essential thing is to make a decision. In case, if you do not make any decision, everyone will follow different things on various parts of the app.
Arrange Your Code


Ensure that all the JavaScript code must be namespaced correctly, and it is boorish to spoil the global namespace, and in the end, it will bite you.

<!-- DON'T DO THIS!  -->
<button id='update-button' onclick="MyNamespace.updateList();">Update List</button>

It is also possible to sum-up the functions, which you don’t want to expose.
MyNamespace = window.MyNamespace || {};
MyNamespace.Tournament = function() {
// Private stuff
var tournamentCount = 0;
function addTournament(tournament) {
return {
//public stuff
numberOfTournaments: function() {
return tournamentCount;
It is also essential for you to divide your JavaScript code into various files. When it comes to the namespace idiom above, it will help you out to have the same namespace across different files.
This same principle with other kind of code is accurate with JavaScript, so you can organize the code by area like where it is used and changes. Moreover, the files can be concatenated with tools such as Ant, Rake, SCons and simple as well:

$ cat file1.js file2.js file3.js > all.js

It is also possible for you to include with JSMin or YUI Compressor.

Divide Your JavaScript From Your HTML

Very often, a lot of people have seen created HTML pages with JavaScript code in them. So, do not do it, you should keep HTML free from JavaScript.

<!-- DON'T DO THIS!  -->
<button id='update-button' onclick="MyNamespace.updateList();">Update List</button>

// In the Javascript file for the page.
MyNamespace.updateList = function() {…}

<!-- DO THIS! -->
<button id='update-button'>Update List</button>

// In the Javascript file for the page.
MyNamespace.updateList = function() {…}
$(function() {
$(“#update-button”).click(function() {

Divide Your JavaScript From Your HTML

Make Use of Clone()

When it comes to separating the HTML and the JavaScript, both the languages goes both ways. Ensure that you do not create any HTML code in JavaScript as it doesn’t matter that it is super easy to do it using jQuery.html(). So, you should keep them separate by using jQuery.clone() instead.

$("<li data-id='123'>My new item</li>").appendTo("ul");
$("ul").append("<li data-id='123'>My new item</li>");


<!-- DO THIS -->
<li id="list-template" class="template">All .template are hidden (display: none) in the CSS</li>


var $clone = $("#list-template").clone();
$clone.attr("data-id", "123").text("My new item").removeClass("template");


Make Use of File Watchers to Speed up Feedback

You will become little happy with the small feedback sphere if you compare the feedback cycle of JavaScript and HTML development to Java and C# development. However, it doesn’t mean that you must be content.
There are some of the tools like xrefresh for Firefox and IE, and LiveReload for Safari and Chrome as these can easily tighten your feedback loop. However, both these tools are file watchers, which listen to changes for files and refresh the browser when they change. You can have one single screen for the browser if you combine this with two screens.


We all know that rich and modern web applications are very much close to the traditional client-server model. It is must for all of us to keep situation on the client side to provide the user an incredible experience.
Simultaneously, the app situation can easily be swept away by just click a button or a page reload. As a professional developer, it puts pressure on us; however, we have to realize that we are accountable for the while application, not only for the business logic, but the HTML and CSS too.
In addition to this, it is must to realize that JavaScript is the most important programming language with its own programming tactics that we need to master to develop good web applications.
To get more information about web application and its solutions, stay connected with us as we will keep updating latest information about it. However, if you want to hire a professional web application developer, you can contact us.

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by admin

Publish on May 18 2015