Create a Progress Bar After Button Click

Discover how to create an interactive `progress bar` in JavaScript that runs after a button is clicked. Follow our simple guide for clear steps and coding tips!
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This video is based on the question https://stackoverflow.com/q/64728489/ asked by the user 'Adhitya' ( https://stackoverflow.com/u/14548512/ ) and on the answer https://stackoverflow.com/a/64728640/ provided by the user 'Harshana' ( https://stackoverflow.com/u/6952359/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Create a Progress Bar After Button Click: A Step-by-Step Guide

Creating interactive elements in web development can be a fun and rewarding experience. One common request among developers is to create a progress bar that activates upon clicking a button. This task can seem a bit complex at first, especially if you're not sure how to start or which technologies to use. In this guide, we'll explore how to set up an interactive progress bar that runs after a button click.

Understanding the Problem

When you want to implement a progress bar, the goal is typically to visually represent a process that takes time, such as loading or completing a task. The challenge is to set up a button that, when clicked, will start the progress bar moving. The original question posed by a developer highlighted their struggle to implement this feature using JavaScript, so let’s break it down into manageable parts.

Solution Overview

To achieve our desired outcome of a functioning progress bar activated by a button click, we'll need to use a combination of HTML, CSS, and JavaScript. Here's what we need to do:

Create the HTML structure for the progress bar and button.

Style the progress bar using CSS for better aesthetics.

Write the JavaScript function to control the progress of the bar.

Step 1: HTML Structure

We start by building the structure of our progress bar and button. Here's a simple markup example:

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

Progress Bar: This is enclosed within a div with the class progress. Inside, another div with the class progress-bar will spell out the current progress.

Button: A simple button that, when clicked, will call the move() function to initiate the progress.

Step 2: CSS Styling

Next, we'll want the progress bar to look nice and smooth as it fills up. Here’s an example of CSS that enhances the appearance of our progress bar:

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

Styling with CSS: The CSS code above gives the progress bar a defined height, background color, and a transition effect that smooths the movement as it fills up.

Step 3: JavaScript Functionality

Now, we need to implement the logic that will control the progress of the bar. Here's the JavaScript function that does just that:

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

JavaScript Logic:

On button click, the function move() is called.

The width starts at 0 and increments by 1% every 55 milliseconds until it reaches 100%.

The progress is visually reflected in the width of the element, while also updating the inner text to show the percentage.

Wrapping It Up

In this post, we tackled the common challenge of creating a progress bar that starts moving on a button click. By structuring our HTML, styling with CSS, and scripting with JavaScript, we built a user-friendly interface that reflects task progress visually.

Feel free to experiment with the code, adjust timings, and customize the styles to fit your application. Happy coding!

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