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script.js
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script.js
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function calculateTip() {
var billAmt = document.getElementById("billamt").value;
var feedback = document.getElementById("Options").value;
var numOfPeople = document.getElementById("people").value;
if (billAmt === "" || feedback == 0) {
alert("Please enter values");
return;
}
if (numOfPeople === "" || numOfPeople <= 1) {
numOfPeople = 1;
document.getElementById("each").style.display = "none";
} else {
document.getElementById("each").style.display = "block";
}
//calculate Tip
var total = (billAmt * feedback) / numOfPeople;
total = Math.round(total * 100) / 100;
total = total.toFixed(2);
document.getElementById("totalTip").style.display = "block";
document.getElementById("tip").innerHTML = total;
}
document.getElementById("totalTip").style.display = "none";
document.getElementById("each").style.display = "none";
document.getElementById("calculate").onclick = function() {
calculateTip();
};