DAY 5 PROJECT : CASH CALCULATOR
Tags: webdev, javascript, beginners, programming
Published: 2024-06-29 09:08:20

## **Building a Cash Calculator: A Practical Guide**

In today's fast-paced world, managing finances efficiently is crucial. Whether you're planning a budget or calculating expenses, having a tool that simplifies these tasks can be invaluable. This blog post explores the creation of a cash calculator using HTML, CSS, and JavaScript, offering a user-friendly solution for financial calculations.

**Key Features:**

- **User Interface (UI)**: A clean and intuitive interface designed using HTML and styled with CSS to ensure clarity and ease of use.
- **Functionality**: JavaScript will power the calculator's logic, enabling real-time calculation based on user inputs.

**Benefits of the Cash Calculator**

- **Simplicity**: Users can perform financial calculations effortlessly, helping them plan budgets and manage expenses effectively.
- **Accessibility**: Being web-based, the calculator is accessible from any device with a browser, making it convenient for users on the go.
- **Educational Tool**: It can serve as an educational resource for learning basic arithmetic operations in the context of financial calculations.

**TOOLS**-

**HTML Structure**:

Create a structured layout using HTML to define the calculator's components such as display area, number buttons, and operation buttons.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/7oh6e7aa5awjsh4qsgc2.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/74d40pr7z9v6cuzishag.png)

**CSS Styling**:

Use CSS to enhance the visual appeal and usability of the calculator. Apply styles to buttons, input areas, and overall layout to ensure consistency and clarity.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/oanktvxl6mx4fkivmrw6.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/kzd5osq24sd5ir9byvo2.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/t0ummb8oftpo2ixp9olw.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rqqizx7zoi3hlb0170y4.png)

**JavaScript Logic**:

- Implement JavaScript functions to handle user interactions.
- Input Handling: Capture user inputs from number and operation buttons.
- Calculation Logic: Perform arithmetic operations based on user actions.
- Display Management: Update the display area with results dynamically as calculations are performed.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/xswagj1i2yunosbtcycn.png)


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fe5qnipdgqlu9a29iex2.png)

This code sets up a cash calculator that updates values based on user input. It references input fields for different denominations (like 2000, 500, etc.) and corresponding display elements for calculated totals. When a user inputs a quantity for any denomination, the cashCalculate function multiplies it by the denomination value, updates the total for that row, and displays it. There's also a reset button to clear all inputs.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jrje03syyte52oqkwzqf.png)

This code calculates the total cash value from different denominations and updates the display. It adds all the individual totals to show the overall cash amount both numerically and in words. The clearData function resets all inputs and totals. The convertToWords function converts a numerical value into its word representation, handling units, teens, tens, crores, and lakhs.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/omj36qac6isq1t3x05uk.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/bp67ujff818k82p2snvv.png)

This code adds an event listener to each cash input field. It checks if the input value is not a number or is negative; if so, it clears the input. This ensures only valid, non-negative numbers are entered.

SO,
Creating a cash calculator with HTML, CSS, and JavaScript provides a practical tool for managing finances effectively. This project enhances user experience by ensuring accurate calculations and intuitive input handling. By converting numerical totals into words and maintaining a clear interface, the calculator becomes a valuable resource for budgeting and financial planning. 

Through this hands-on project, developers can also strengthen their skills in web development and user interface design.

THANK YOU!
HAPPY CODING!