JavaScript Assignment: Build a Simple Calculator

Objective

Write a JavaScript program that uses functions with parameters and return values to perform basic arithmetic operations.

Instructions

• Create a div with the class "calculator".
• Create two <input> of type "number".
• Create a <select> object that allows the user to choose the operation + - * /
• <select id="operation">
• <option value="+">+</option>
• Create a button to submit your data.
• Create four functions: add(a, b), subtract(a, b), multiply(a, b), and divide(a, b).
• Each function should take two parameters and return the result.
• Write a main() function that:
  • Prompts the user for two numbers and an operation.
  • Calls the appropriate function.
  • Displays the result.