Creating a Dynamic Bootstrap 4 Range Slider for Client and Company Percentages

Learn how to create a dynamic Bootstrap 4 range slider that splits the percentage between two items: Client and Company. Perfect for web developers looking to add interactive features!
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This video is based on the question https://stackoverflow.com/q/66763563/ asked by the user 'mark1178' ( https://stackoverflow.com/u/1607106/ ) and on the answer https://stackoverflow.com/a/66763771/ provided by the user 'catJam' ( https://stackoverflow.com/u/12944326/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Creating a Dynamic Bootstrap 4 Range Slider for Client and Company Percentages

Do you want to enhance your web application with a dynamic range slider that cleverly splits percentage values between two categories, such as Client and Company? If you've been struggling to implement this with Bootstrap 4.5 and jQuery or JavaScript, you're in the right place! In this post, we will walk you through the steps needed to create a functional and stylish range slider that updates the percentages in real time.

Understanding the Problem

You need a range slider that can represent percentage values for two entities—Client and Company—summing up to 100%. This requires you to update one percentage based on the value selected on the range slider, while the other percentage is automatically calculated. For instance, if the client has 30% of a value, then the company would have 70%. Easy right? Let's make that happen!

Setting Up Your HTML Structure

First, start by setting up the HTML structure. You will create a division for both Client and Company percentages, along with the range input. Here’s how your HTML might look:

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Breakdown of the HTML

Parent Div (row): This contains two columns. One for the Client and the other for the Company.

Percentage Display: This is where the percentages will be shown; spans with the IDs client and company will be dynamically updated using JavaScript.

Range Slider: An input field of type range with a minimum value of 1 and a maximum value of 100, allowing you to choose any percentage in that range.

Adding JavaScript Functionality

Now let's make it dynamic with some JavaScript! Below is a simple script to handle the changes from the range slider and update the percentage displays accordingly.

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

Explanation of the JavaScript Code

Select Elements: We select the range input and the spans that will display the percentages using their respective IDs.

Event Listener: An event listener is added to the range input to trigger a function every time the slider is changed.

Client Value: We capture the current value of the slider, which represents the Client's percentage, and display it.

Company Value: We calculate the Company's percentage by subtracting the Client's percentage from 100, then display it too.

Conclusion

Congratulations! You have created a functional and stylish range slider that dynamically updates the percentages between two items—Client and Company. This enhancement not only boosts user interaction but also provides valuable data visualization for users. Feel free to tweak the styles and functionalities to better fit your web application needs.

If you have any questions or need further clarification, leave a comment below, and we’ll be happy to help!