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Validate bill and tip values before calculation #98

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Validate bill and tip values before calculation #98

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4 changes: 4 additions & 0 deletions projects/tip-calculator/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,8 +6,12 @@ const totalSpan = document.getElementById("total");
function calculateTotal() {
const billValue = billInput.value;
const tipValue = tipInput.value;
if(tipValue<=0||billValue<=0){
alert("bill value or tip value cannot be less than equal to zero);
}else{
const totalValue = billValue * (1 + tipValue / 100);
totalSpan.innerText = totalValue.toFixed(2);
}
}

btnEl.addEventListener("click", calculateTotal);