Javascript validating phone number field

In a real case, this function would probably be called as part of a larger validate form function.If the phone number was invalid, we would want to return false to cancel form submission as well as informing the user of the errors of their ways.There is probably a known minimum length for phone numbers - the Falklands seem to use 5 digits internally, for example, and Ascension maybe 4.There's also, IIRC, a maximum allowable length, maybe larger than expected.The OP should consult ITU recommendations before proceeding.That allows characters ( ) which cannot be dialled.We generally choose the release number following these guidelines.If any of the changes pushed to master since the last release are incompatible with the intent / specification of an existing libphonenumber API or may cause libphonenumber (Java, C , or JS) clients to have to change their code to keep building, we publish a major release.

The “validation descriptor” is nothing but a string specifying the type of validation to be performed.For consistency, it should also allow the characters and - which occur in standard and/or common forms of printed number.Since, as well as 0 1 2 3 4 5 6 7 8 9, there are keys for * and #, could it be that those also ought to be allowed?Microsoft is conducting an online survey to understand your opinion of the Technet Web site.If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.

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To include the Java code in your application, either integrate with Maven (see wiki) or download the latest jars from the Maven repository.

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