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Posted by Michael Winter on 06/28/05 14:50
On 28/06/2005 11:59, Noozer wrote:
> Not sure which newgroup would be best... but since this is being used in a
> Javascript function on a web page I guess it could go here...
This group takes many subjects, but a scripting question is still a
scripting question, and I'd have asked in clj.
[snip]
> Is there a regular expression I can use to ensure that the hyphens are
> always there?
> User input ->Result
> 12312341234 -> 123-1234-1234
> 123-12341234 -> 123-1234-1234
As simply a test:
/^\d{3}-\d{4}-\d{4}$/.test(accountNumber)
See below for the conversion form.
> How about to always remove hyphens.
> User input -> Result
> 123-1234-1234 -> 12312341234
> 1231234-1234 -> 12312341234
accountNumber = accountNumber.replace(/^(\d{3})-?(\d{4})-?(\d{4})$/,
'$1$2$3');
If you inserted hyphens into the string literal, you could do the reverse.
Note that the hyphens in the regular expression are followed by a
question mark (?), which indicates that they are optional. The
assignment statement above would cope with both input forms you presented.
> Finally, any regular expression to ensure that only 11 characters have been
> entered and only digits have been entered.
/^\d{11}$/
> What changes would be need to accept digits AND hyphens.
I think the first case would cover that.
Mike
--
Michael Winter
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