Regular Expression used to verify common phone and fax numbers (it can start with + and can contain-in addition to numbers -)

Copy codeThe Code is as follows: function isTel (object)
{
Var s = document. getElementById (object. id). value;
// Verify the phone number and mobile phone number
Var pattern =/^ (\ d {11}) | ^ (\ d {7, 8}) | (\ d {4} | \ d {3 }) -(\ d {7, 8}) | (\ d {4} | \ d {3})-(\ d {7, 8 }) -(\ d {4} | \ d {3} | \ d {2} | \ d {1}) | (\ d {7, 8 }) -(\ d {4} | \ d {3} | \ d {2} | \ d {1}) $ )/;
// Var pattern =/^ ([0 \ +] \ d {2, 3 }-)? (0 \ d {2, 3})-) (\ d {7, 8}) (-(\ d {3 ,}))? $ /;
// Var pattern =/(^ [0-9] {3, 4} \-[0-9] {7, 8} $) | (^ [0-9] {} $) | (^ \ ([0-9] {} \) [0-9] {} $) | (^ 0 {0, 1} 13 [0-9] {9} $ )/;
If (s! = "")
{
If (! Pattern.exe c (s ))
{
Alert ('phone number entered incorrectly. Please enter it. ');
Object. value = "";
Object. focus ();
}
}
Else
{
Alert ('the phone number is not blank. Please enter it again. ');
}
}

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