Javascript works except for it needs to flag a string that has first two letters

ID: 3636283 • Letter: J

Question

Javascript works except for it needs to flag a string that has first two letters as uppercase and rest as lowercase - here's what I have so far:

ad>
<title>ssn Checker</title>
<script type="text/javascript">
var RE_SSN = /[A-Z][a-z]2/;

function tst_name(ssn){
if (RE_SSN.test(ssn)) {
alert("VALID name");
} else {
alert("INVALID name");
}
}

</script>
</head>
<body>
<form>
<input type="text" name="ssn" size="20">
<input type="button" value="This returns an invalid if string is all uppercasewhich has to have the 1st letter be uppercase and the rest lowercase"
>

</form>
</body>
</html>

Explanation / Answer

Hi,

Re-reading this post, I'm not sure my prior solution identifies the correct regular expression. If the following names are valid:

ABcdef
GHij
ZZxxx

But these are INVALID:

Abcdef
ghij
ZZXxx

Then the prior regular expression I gave you will need to be changed to:

var RE_SSN = /^[A-Z]{2}[a-z]+$/;

If I'm off-base, be sure to list out some valid vs. invalid inputs as examples and we'll get the right expression to match.

Thanks,

Joe

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Javascript works except for it needs to flag a string that has first two letters

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