The following code is used for formatting the phone number in javascript.
Eg:
1. Input: 1234567890
Output: 123-456-7890
2. Input: 0444322567
Output: 044-432-2567
It also validated, whether if the given input is valid number.
function formatPh(ph, type) {
var phObj = document.getElementById(ph);
type = phObj.value;
var phNum = phObj.value;
var isHypen = /\-/g;
var phDigit = /^\d{10}$/;
var phNos = "1234567890-";
var validFormat = /^\d{3}\-\d{3}\-\d{4}$/
var notZeroHypen =
/^([0-9][0-9][1-9]|[0-9][1-9][0-9]|[1-9][0-9][0-9])\-([0-9][0-9][1-9]|[0-9][1-9][0-9]|[1-9][0-9][0-9])\-([0-9][0-9][0-9][1-9]|[0-9][1-9][0-9][0-9]|[0-9][0-9][1-9][0-9]|[1-9][0-9][0-9][0-9])$/;
var notZero =
/^([0-9][0-9][1-9]|[0-9][1-9][0-9]|[1-9][0-9][0-9])([0-9][0-9][1-9]|[0-9][1-9][0-9]|[1-9][0-9][0-9])([0-9][0-9][0-9][1-9]|[0-9][1-9][0-9][0-9]|[0-9][0-9][1-9][0-9]|[1-9][0-9][0-9][0-9])$/;
for(var i = 0; i <= phNum.length-1; i++) {
if(phNos.indexOf(phNum.substring(i, i+1)) == -1) {
alert("Not a valid "+ type +" Number \n"+ type +" Number format should be like this 123-456-7890");
return;
}
}
if(isHypen.test(phNum)) {
if(validFormat.test(phNum) && notZeroHypen.test(phNum)) {
phObj.value = phNum;
} else {
alert("Not a valid "+ type +" Number \n"+ type +" Number format should be like this 123-456-7890");
return;
}
} else {
if(phDigit.test(phNum) && notZero.test(phNum)) {
phObj.value = phNum.substring(0, 3) + "-" + phNum.substring(3, 6) + "-" + phNum.substring(6, 10);
} else {
alert("Not a valid "+ type +" Number \n"+ type +" Number format should be like this 123-456-7890");
return;
}
}
}
The formatPh(ph, type) method is getting the two parameters.
ph -> the input control id
type -> type of the input. it specifies whether the number is phone, mobile, etc.
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