Can anyone help? I need to get this funciton to work to not allow letters.
str = zip.value;
nr = parseInt(str);
l = str.length;
if (nr != NaN && nr.toString().length == l && l <= 9)
alert('Invalid Zip Code. Please re-enter.');
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So let’s take a number like this “12345678.91¿ and format i…
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