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August 29, 2015 14:13
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Validate an IP
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| function validate_ip(ipaddr) | |
| { | |
| if (/\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b/.test(ipaddr)) | |
| return true; | |
| return false; | |
| } | |
| usage: | |
| <script> | |
| if ( validate_ip("192.168.10.10") ) { | |
| /* ip is valid */ | |
| } else { | |
| /* ip is not valid */ | |
| } | |
| </script> |
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