$.validator.addMethod( "mobileRU", function( phone_number, element ) { var ruPhone_number = phone_number.replace( /\(|\)|\s+|-/g, "" ); return this.optional( element ) || ruPhone_number.length > 9 && /^((\+7|7|8)+([0-9]){10})$/.test( ruPhone_number ); }, "Please specify a valid mobile number" );
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