Question

Function add(num1, num2) { return num1 + num2; } function subtract(num1, num2) { return num1 - num2; } function multiply(num1, num2) { return num1 * num2; } function divide(num1, num2) { return num1 / num2; } Get user input for the two numbers and the operation to perform let num1 = prompt("Enter the first number:"); let num2 = prompt("Enter the second number:"); let operation = prompt("Enter the operation to perform (+, -, *, /) Convert the user input from strings to numbers num1 = parseFloat(num1); num2 = parseFloat(num2); Perform the calculation and store the result let result; if (operation === "+") { result = add(num1, num2); } else if (operation === "-") { result = subtract(num1, num2); } else if (operation === "*") { result = multiply(num1, num2); } else if (operation === "/") { result = divide(num1, num2); } Log the calculation and the result to the console console.log(`${num1} ${operation} ${num2} = ${result}`);

Now, simply convert all your normal functions into arrow functions on the above code

Answer 1

To convert the functions to arrow functions, modify the function declarations to the arrow function syntax. In calculations, adhere to arithmetic rules for addition, subtraction, multiplication, and division and consider significant figure rules.

Step-by-step explanation:

Converting the provided functions in a calculator program to arrow functions can be done very easily. Arrow functions provide a more concise syntax for writing function expressions. Here is how you would convert the given standard functions to arrow functions:

const add = (num1, num2) => num1 + num2;
const subtract = (num1, num2) => num1 - num2;
const multiply = (num1, num2) => num1 * num2;
const divide = (num1, num2) => num1 / num2;

Notice that with arrow functions, if the body of the function involves a single expression that is being returned, you can omit the braces and the return keyword. For more complex functions, you'd still need to use braces and a return statement. It's important to adhere to the rules of arithmetic operations when using this calculator. For addition and subtraction, the principles include:

• Two positive numbers add to a positive result (e.g., 3 + 2 = 5).
• Two negative numbers add to a negative result (e.g., -4 + (-2) = -6).
• Adding two numbers of opposite signs involves subtracting the smaller number from the larger and taking the sign of the larger number (e.g., -5 + 3 = -2).
• Subtraction can be thought of as adding the opposite sign of the number being subtracted (e.g., 5 - 3 is the same as 5 + (-3) = 2).

Similarly, for multiplication and division, remember that:

• Multiplying two positive numbers or two negative numbers gives a positive result (e.g., 2 x 3 = 6 and (-4) x (-3) = 12).
• Multiplying numbers with opposite signs gives a negative result (e.g., -3 x 2 = -6).
• Dividing follows the same sign rules as multiplication (e.g., -4 / 2 = -2).

When performing calculations with calculators, being mindful of the number of significant figures is critical, to avoid presenting overly precise results that are not justified by the data.