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Chloe Fontenot 🏳️‍⚧️
2023-03-24 13:26:48 -05:00
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Chapter ZIPs/JavaScript/ch6/ex_6_14.html Executable file
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<html>
<head>
<title>Example 6.14</title>
<script>
function checkPassword(pword)
{
var userWord = ""; var char1 = ""; var msg ="";
var checkLength = false; var checkChar = false; var checkDigit = false; var checkSpecial = false;
userWord = document.getElementById(pword).value;
document.getElementById('show_word').innerHTML = userWord;
//check length of word
while (checkLength == false)
{
if ((userWord.length < 4) || (userWord.length > 8))
{
msg = "The password must be between 4 and 8 characters. Try again";
document.getElementById('error_msg').innerHTML = msg;
userWord = document.getElementById(passwrd).value;
}
else
checkLength = true;
}
//check first character
char1 = userWord.substr(0,1);
while (checkChar== false)
{
if ((char1 < 65) || ((char1 > 90) && (char1 < 97)) || (char1 > 122))
{
msg = "The first character must be a letter of the alphabet. Try again";
document.getElementById('error_msg').innerHTML = msg;
userWord = document.getElementById(passwrd).value;
}
else
checkChar = true;
}
//check for digit
wordLength = userWord.length;
for (i = 1; i <= (wordLength - 1); i++)
{
if ((userWord.charCodeAt(i) >= 47) && (userWord.charCodeAt(i) <= 58))
{
checkDigit = true;
break;
}
}
if (checkDigit == false)
{
msg = "You must have at least one number in the password. Try again";
document.getElementById('error_msg').innerHTML = msg;
userWord = document.getElementById(passwrd).value;
}
//check for special character
for (i = 1; i <= (wordLength - 1); i++)
{
if ((userWord.charCodeAt(i) == 35) || (userWord.charCodeAt(i) == 36) || (userWord.charCodeAt(i) == 37))
{
checkSpecial = true;
break;
}
}
if (checkSpecial == false)
{
msg = "You must have one special character ($, %, or #) in the password. Try again";
document.getElementById('error_msg').innerHTML = msg;
userWord = document.getElementById(passwrd).value;
}
if ((checkLength == true) && (checkChar == true) && (checkDigit == true) && (checkSpecial == true))
{
msg = "Congratulations! You have successfully entered a valid password.";
document.getElementById('error_msg').innerHTML = msg;
}
}
</script>
</head>
<body>
<table width = 60% align = "center"><tr><td><br />
<h3> Enter a password in the box below. Your password must:
<ul><li>contain between 4 and 8 characters</li>
<li>begin with a letter of the alphabet (upper or lowercase)</li>
<li>contain at least one digit (0 - 9)</li>
<li>contain one of the following special characters: dollar sign ($), percent sign (%), or pound sign (#)</li></ul>
<p><input type="password" name="user_pwrd" id="passwrd" size = ""/>
<input type ="button" onclick="checkPassword('passwrd')" value = "ok"></button></p>
<p><span id="error_msg">&nbsp;</span><br />
<p>Password information:<br />
Password entered: <span id = "show_word">&nbsp;</span> </p>
</td></tr></table>
</body></html>