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Question
Write event driven JavaScript program for the following.
Accept any string from user and count and display number of vowels occurs in it.
Answer in Brief
Solution
Coding:
<html>
<script type="text/javascript">
var n, i, ch, cnt = 0;
n = prompt("Enter a String");
for (i = 0; i < n.length; i++) {
ch = n.charAt(i);
if (ch == 'a' || ch == ' A' || ch == 'e' || ch == 'E' || ch == 'i' ||
ch == 'I' || ch == 'o' || ch == 'O' || ch == 'u' || ch == 'U') {
cnt = cnt + 1;
}
}
document.write("Number of vowels in string are " + cnt);
</script>
</html>shaalaa.com
JavaScript Built-in Objects - String
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