Page 283 - Web Applications (803) Class 12
P. 283
}
var answer = document.getElementById(“Result”);
answer.textContent = “The array is “ + num + “\nSum of numbers in the
array: “ + sum;
}
calculateSum();
}); //close brackets of event listener function
Output:
16. Create a webpage which accepts the radius of a circle and choice from the user. Using the switch case in JavaScript
calculate and display the area or circumference of the circle as per choice entered.
Ans. <html>
<head>
<title>Circle Calculator</title>
</head>
<body>
<h1>Circle Calculator</h1>
<label for=”radius”>Enter the radius of the circle:</label>
<input type=”number” id=”radius”>
<br> <br>
<label for=”calculation”>Choose what you want to calculate:</label>
<select id=”calculation”>
<option value=”area”>Area</option>
<option value=”circumference”>Circumference</option>
</select>
<button onclick=”calculate()”>Calculate</button>
Practical Work 281

