Page 284 - Web Applications (803) Class 12
P. 284
<p id=”result”></p>
<script>
function calculate() {
var radius = parseFloat(document.getElementById(“radius”).value);
var choice = document.getElementById(“calculation”).value;
var answer = document.getElementById(“result”);
var result;
if (choice === “area”) {
result = 3.14 * radius * radius;
} else if (choice === “circumference”) {
result = 2 * 3.14 * radius;
} else {
result = “Please select a calculation.”;
}
answer.textContent = (typeof result === ‘number’) ? result.
toFixed(2) : result;
}
</script>
</body>
</html>
Output:
17. Consider the string “Give Gratitude Everyday”. Write a function in JavaScript which performs the following tasks:
a. Reverses the string and displays it
b. Replaces all spaces in the string with “**”. Display the new string.
c. Find the position of the first occurrence of “it” and display it.
282 Touchpad Web Applications-XII

