How to do Real time form arithmetic in JavaScript

This snippet can be used to do Real time arithmetic using JavaScript.

In the example below. I am using a simple arithmetic to calculate 4% tax and output real-time total amount.

  1. Create an HTML form field for input amount. Create two input fields to output tax and total sum in Real time.

2. Following JavaScript code block will be used to calculate tax.

So, final snippet will be following:–

 

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