Calculator Coding In Html
HTML
Basic Calculator Code In HTML CSS and Javascript
Here's a simple HTML code for a basic calculator
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Simple Calculator</title>
<style>
input {
width: 100%;
padding: 10px;
margin: 5px 0;
}
</style>
</head>
<body>
<h2>Simple Calculator</h2>
<form name="calculator">
<input type="text" name="display" id="display" readonly>
<br>
<input type="button" value="1" onclick="appendToDisplay('1')">
<input type="button" value="2" onclick="appendToDisplay('2')">
<input type="button" value="3" onclick="appendToDisplay('3')">
<input type="button" value="/" onclick="appendToDisplay('/')">
<br>
<input type="button" value="4" onclick="appendToDisplay('4')">
<input type="button" value="5" onclick="appendToDisplay('5')">
<input type="button" value="6" onclick="appendToDisplay('6')">
<input type="button" value="-" onclick="appendToDisplay('-')">
<br>
<input type="button" value="7" onclick="appendToDisplay('7')">
<input type="button" value="8" onclick="appendToDisplay('8')">
<input type="button" value="9" onclick="appendToDisplay('9')">
<input type="button" value="+" onclick="appendToDisplay('+')">
<br>
<input type="button" value="0" onclick="appendToDisplay('0')">
<input type="button" value="." onclick="appendToDisplay('.')">
<input type="button" value="C" onclick="clearDisplay()">
<input type="button" value="=" onclick="calculate()">
</form>
<script>
function appendToDisplay(value) {
document.calculator.display.value += value;
}
function clearDisplay() {
document.calculator.display.value = "";
}
function calculate() {
try {
document.calculator.display.value = eval(document.calculator.display.value);
} catch (error) {
document.calculator.display.value = "Error";
}
}
</script>
</body>
</html>
This code creates a basic calculator with buttons for digits, arithmetic operations, and a display for the results. Keep in mind that using eval for calculations can have security implications in a real-world application, so be cautious if you plan to extend this for production use.