htmlcalc

HTMLCalc is a simple calculator program written in HTML and JavaScript. It performs basic mathematical operations such as addition

subtraction

multiplication

and division. The program consists of an HTML file that contains the user interface and a JavaScript file that handles the calculations.

The HTML file consists of a text input field

where the user can enter the numbers to be calculated

and several buttons for the mathematical operations. Additionally

there is a result field where the calculated result is displayed.

The JavaScript file includes event listeners for the buttons

which trigger the corresponding calculation function when clicked. The calculation functions take the numbers from the input field

perform the operation

and display the result in the result field.

For example

for addition

the JavaScript function would take the two numbers from the input field

convert them to numbers

add them together

and display the result in the result field.

The program also includes error handling to check for invalid inputs. For instance

if the user enters non-numeric characters or divides by zero

an error message will be displayed instead of the result.

To make the program more user-friendly

it can also include additional features such as a clear button to reset the input and result fields

and keyboard support to allow users to input numbers using their keyboards.

Overall

HTMLCalc is a basic calculator program written in HTML and JavaScript. It allows users to perform simple mathematical operations and provides error handling for invalid inputs.