Shop and Ship Calculator

let shippingSteps = “”; const currencySymbol = “$”, fixedCurrency = “USD”; function calculateShipping() { shippingSteps = “”; const weight = parseFloat(document.getElementById(“itemWeight”).value); const distance = parseFloat(document.getElementById(“shippingDistance”).value); const method = document.getElementById(“shippingMethod”).value; if (isNaN(weight) || isNaN(distance) || weight <= 0 || distance <= 0) { alert("Please enter valid positive values for all fields."); return; } let cost = 0; if (method === "standard") { cost = (weight * 0.5) + (distance * 0.1); } else if (method === "express") { cost = (weight * 0.7) + (distance * 0.15); } else if (method === "overnight") { cost = (weight * 1.0) + (distance * 0.2); } document.getElementById("shippingCost").value = formatCurrency(cost); shippingSteps += `Inputs:
Item Weight: ${weight} kg
Shipping Distance: ${distance} km
Shipping Method: ${method}

`; shippingSteps += `Formulas:
Shipping Cost = (Weight × Rate) + (Distance × Rate)

`; shippingSteps += `Results:
Estimated Shipping Cost: ${formatCurrency(cost)}
`; if (document.getElementById(“calculationSteps”).style.display === “block”) { document.getElementById(“calculationSteps”).innerHTML = shippingSteps; } } function resetCalculator() { document.querySelectorAll(“#calculator input, #calculator select”).forEach(el => el.value = “”); shippingSteps = “”; document.getElementById(“calculationSteps”).innerHTML = “

Not calculated yet.

“; } function toggleShippingSteps() { const s = document.getElementById(“calculationSteps”); const a = document.getElementById(“toggleArrow”); if (s.style.display === “none” || s.style.display === “”) { s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = shippingSteps || “

Not calculated yet.

“; } else { s.style.display = “none”; a.style.transform = “rotate(0deg)”; } } function formatCurrency(n) { return currencySymbol + n.toFixed(2) + ” ” + fixedCurrency; }