JavaScript and jQuery: front-end web development

The web has grown exponentially and what you see on the web is all front-end. The mixture of creativity and logic a perfect combination, front-end development is all about converting the data into the graphical interface. Codingzap offers a wide range of services. JavaScript and jQuery: front-end web development is one of our expertise.

Over the years we have gained expertise in JavaScript and jQuery if you need your application to be developed using JavaScript or jQuery then you are at the right place.

“Powering ideas to the reality” is what we do at Codingzap.

What’s on the Front-end?

Definitely, the answer will be HTML and CSS.  

Oops!  missed one of the major components that is JavaScript.

Is JavaScript really that important?

Yes, it is.

JavaScript is one of the major components of the world wide web and is a high-level interpreted programming language.

It’s easy to use and due to it major use over the world wide web, it has got some rich open source libraries such as jQuery, Angular, React JS and the list goes on.

So, Why is it really important and what’s the use of JavaScript?

In simple words the interactive behavior a web page offer you is what JavaScript is responsible for. An example of that would be a pop-up when the page loads or can be any action when you click an element on the web page.

Still not clear?

Let me show you an example.

Click on the button below to get a pop-up that says ” Greetings from Codingzap “.

click me

The above was a  quick demo of JavaScript.

Curious to know what JavaScript code I wrote in the above demo for that pop-up alert?

Here is what you see as the pop-up.

First I created a button by using plain HTML.

<button>click me</button>

The second thing I wrote a function in  JavaScript for pop up alert.

<script>

The final thing is to call the pop up alert function .i.e demofunction().

I this did by adding onclick attribute in the button element and specifying the function name.

<button onclick=”demofunction()”>click me</button>

If you are new with JavaScript and has just started to learn it then you can try the above example.

Moving forward let’s talk about the JavaScript library.

Why should we use a JavaScript library?

Here are 5 reasons to use the JavaScript library-

1. Easy to use
2. Do more with fewer codes.
3. Reduces time
4. Increase productivity
5. Achieve difficult tasks with less complexity.

jQuery Framework:

Before starting to use the jQuery library you must know basic JavaScript

jQuery is one of the most widely deployed JavaScript libraries. With jQuery, you can easily manipulate the DOM elements, do event handling, animations and perform Ajax with much simplicity.

It’s also cross-platform which means no need for different codes for different browsers.

The motto of jQuery ” Write less, do more“.

Let me show you how-

Imagine a scenario where we want to select an HTML element and perform a toggle operation.

Let’s THINK BIG with a small example.

I have designed an image of a light bulb.  For designing the image I have used  Inkscape tool.

So, there is two versions of the bulb. One state of the bulb is when it is OFF and one state of the bulb is when it is ON.

Saved both the images separately for this demo I have used the SVG version of the image

The HTML part is as follows-

You might also like Responsive website development(Read more)

JavaScript part is as follows-

Our main focus is the above JavaScript code which is inside <script> tags.

As you can see that for the toggle operation I built my own logic for toggle action.

When the button is clicked the ToggleFunction() is called and the code inside it starts executing.

The code is pretty simple so I am not going to explain to you.

Can we reduce the code size using jQuery and prove that ” Write less, do more” hold true?

Below is the jQuery code for the same operation which we did use JavaScript.