let benefitsText = “”; function performCalculation() { const inputValue = parseFloat(document.getElementById(“inputValue”).value); const calculationType = document.getElementById(“calculationType”).value; let result; if (isNaN(inputValue)) { alert(“Please enter a valid number.”); return; } switch (calculationType) { case “add”: result = inputValue + 5; break; case “subtract”: result = inputValue – 5; break; case “multiply”: result = inputValue * 5; break; case “divide”: if (inputValue === 0) { alert(“Cannot divide by zero.”); return; } result = inputValue / 5; break; default: result = 0; } document.getElementById(“result”).value = result; benefitsText = ` Talking Calculator Benefits:
– Helps individuals with visual impairments by reading out results.
– Supports a variety of operations like addition, subtraction, multiplication, and division.
– Provides real-time audio feedback, enhancing accessibility.
– Easy-to-use interface for all ages.
– Portable and practical for daily use.
`; document.getElementById(“benefitsDetails”).innerHTML = benefitsText; } function resetCalculator() { document.querySelectorAll(“#calculator input”).forEach(el => el.value = “”); benefitsText = “”; document.getElementById(“benefitsDetails”).innerHTML = “

Not calculated yet.

“; } function toggleBenefits() { const benefits = document.getElementById(“benefitsDetails”); const arrow = document.getElementById(“toggleArrow”); if (benefits.style.display === “none” || benefits.style.display === “”) { benefits.style.display = “block”; arrow.style.transform = “rotate(180deg)”; benefits.innerHTML = benefitsText || “

Not calculated yet.

“; } else { benefits.style.display = “none”; arrow.style.transform = “rotate(0deg)”; } }