Converting JQuery Code to Vanilla JavaScript

Unlock the power of pure JavaScript by learning how to convert jQuery code into Vanilla JavaScript with this easy guide.
---

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Convert Jquery to Vanilla Script

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Converting JQuery Code to Vanilla JavaScript: A Step-by-Step Guide

When working on web development, many developers often find themselves using the libraries they are most comfortable with. One of the most popular libraries is jQuery. However, as modern JavaScript continues to develop, there's a growing push towards using vanilla JavaScript, which simplifies the code, reduces load times, and removes external dependencies.

In this guide, we'll take a piece of jQuery code and convert it into pure JavaScript. This is a practical skill for web developers as it enhances performance and keeps your codebase lean.

The Initial Problem

Let's take a look at the original jQuery code:

[[See Video to Reveal this Text or Code Snippet]]

This code contains two main functionalities:

Aggregating input values from a contact form.

Enabling or disabling a submit button based on user input.

The Solution: Vanilla JavaScript Code

Now, let’s dive into converting the above jQuery code into pure JavaScript. We can achieve the same functionalities using the following code:

[[See Video to Reveal this Text or Code Snippet]]

Breakdown of Changes

1. Document Ready

jQuery: Uses $(document).ready().

2. Event Handling

jQuery: Uses .on('keyup', aggregateInput).

Vanilla JS: Uses addEventListener('keyup', aggregateInput).

3. Element Selection

jQuery: Uses jQuery('selector').

4. Get Value of Inputs

jQuery: Uses .val().

Vanilla JS: Uses .value to access the value directly.

5. Enabling/Disabling the Button

jQuery: Uses .attr('disabled', true/false).

Vanilla JS: Uses setAttribute('disabled', true/false) to achieve the same effect.

Final Thoughts

Transitioning from jQuery to vanilla JavaScript can seem daunting, but it’s a worthwhile endeavor for anyone looking to improve their web development skills. Not only does it help in understanding JavaScript better, but it also improves webpage performance by removing the need for libraries.

By practicing these conversions, you will build confidence in your JavaScript abilities and be able to write more efficient, cleaner code. Happy coding!