JavaScript implements a form to validate phone Numbers with regular expressions
- 2020-03-30 02:19:08
- OfStack
The JavaScript form validates a phone number to determine whether an input quantity is a phone number, using regular expressions.
//Check the phone number
function isTel(str){
var reg=/^([0-9]|[-])+$/g ;
if(str.length18){
return false;
}
else{
return reg.exec(str);
}
}