Learn how to create a percentage to decimal converter with HTML, CSS and JavaScript
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Calc</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div>
<h1>Convert Decimal to Percentage and vice versa</h1>
Conversion Method: <select name="convertType" id="convertType">
<option value="Percent">To Percentage</option>
<option value="Decimal">To Decimal</option>
</select> <br>
Value to Convert: <input type="text" name="valueToConvert" id="valueToConvert"> <br>
<button type="button" id="convertBtn">Convert</button>
<div>Converted Value is <span id="convertedValue"></span></div>
</div>
<script src="script.js"></script>
</body>
</html>
CSS
body{
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
}
JavaScript
let conversionType = document.getElementById('convertType');
let numberToConvert = document.getElementById('valueToConvert');
let convertBtn = document.getElementById('convertBtn');
let valueDisplay = document.getElementById('convertedValue');
convertBtn.addEventListener('click', convert)
function convert(){
let result = 0;
if(conversionType.value === 'Percent'){
result = parseFloat(numberToConvert.value) * 100;
valueDisplay.innerHTML = result + "%"
} else {
result = parseFloat(numberToConvert.value) / 100;
valueDisplay.innerHTML = result.toFixed(2);
}
}
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