Lab15

2023-03-30 13:50:50 -05:00
parent e6549f9343
commit bf8d402aa7
72 changed files with 1665 additions and 0 deletions
--- a/ZIPs/JavaScript/ch7/ex_7_11.html
+++ b/ZIPs/JavaScript/ch7/ex_7_11.html
@@ -0,0 +1,49 @@
+<html>
+<head>
+<title>Example 7.11</title>
+<script>
+function getInfo()
+{
+	var name = prompt("What's your name?");
+	var email = prompt("What is your email address?");
+	email = checkEmail(email);
+	document.getElementById('first').innerHTML = name;
+	document.getElementById('second').innerHTML = email;
+}
+function checkEmail(address)
+{
+    flag = true; var atSign = "@"; var address; var okSign = true;
+	while (flag)
+	{
+		var numChars = address.length; 
+		for( j = 1; j < (numChars -5); j++)  
+		{
+			if (address.charAt(j) == atSign)
+			okSign = false; 
+		}
+		if ((address.charAt(numChars - 4) != ".") ||  (okSign == true))
+		{
+			alert("Not a valid email address");
+			address = prompt('Enter a valid email address or enter "quit" to exit the program');
+			if (address == "quit")
+			{
+				address = "unavailable";
+				flag = false;
+			}
+		}
+		else
+			flag = false;
+	}
+	return address;
+}
+
+		
+</script>
+</head>
+<body><table align="center" width = "70%"><tr><td><br />
+<input type ="button" onclick="getInfo()" value = "Enter your information"><br />
+<h3>Your name is: <span id = "first">&nbsp;</span></h3>
+<h3>Your email address is: <span id = "second">&nbsp;</span></h3>
+</td></tr></table>
+</body>
+</html>