Phone Number validation for populating phone number field on load(it takes value of phone number from user table) It should only accept these formats-(999) 999-9999, 999-999-9999, and 9999999999

[Deepali Rattan]

There are two phone number field for requester for and requested by:

Phone Number validation for populating phone number field on load(it takes value of phone number from user table)

It should only accept these formats-(999) 999-9999, 999-999-9999, and 9999999999

I have this code for on change: working fine populating numbers for these formats-(999) 999-9999, 999-999-9999, and 9999999999 (REQUESTED FOR)

 var pattern = /^[+1]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\./0-9]*$/;  
var phone = g_form.getValue('phone_number_requested_for');

if(!pattern.test(newValue)){  


alert('Phone enter a valid phone number');  


g_form.setValue('phone_number_requested_for', '');  
}
	else{
		 phone = phone.replace(/\D/g,'');


var regex = /^\d{10}$/;


var is_valid = regex.test(phone);


if(!is_valid){


alert('Invalid phone number. Please enter 10 digits/ Do not add country code');


g_form.clearValue('phone_number_requested_for');


}
	}


 }  

But same code is not working for onLoad:(REQUESTED BY)

function onLoad() {
   //Type appropriate comment here, and begin script below
    var user = g_form.getValue('requested_by');
    
    var ga = new GlideAjax('InternalApplicationUtil');
    ga.addParam('sysparm_name', 'getValues');
    ga.addParam('sysparm_val', user);
    ga.getXML(getdata);

    function getdata(response) {

        var answer = response.responseXML.documentElement.getAttribute("answer");
		var parseData = JSON.parse(answer);
		g_form.setValue('email_requested_by', parseData.email);
		g_form.setValue('email_requested_for', parseData.email);
		g_form.setValue('phone_number_requested_for', parseData.mobile_phone);
	//	g_form.setValue('phone_number_requested_by', parseData.mobile_phone);
		
		
		
		var phone=parseData.mobile_phone;
		
	//alert(check);
	 var pattern = /^[+1]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\./0-9]*$/;  
//var phone = g_form.getValue('phone_number_requested_for');

if(!pattern.test(phone)){  

alert(phone+" f");
alert('Phone enter a valid phone number');  


g_form.setValue('phone_number_requested_by', '');  
}
	else{
 phone = phone.replace(/\D/g,'');


var regex = /^\d{10}$/;

alert(' m '+phone);
	
var is_valid = regex.test(phone);


if(!is_valid){

alert('d  '+phone);
	
alert('Invalid phone number. Please enter 10 digits/ Do not add country code');


g_form.clearValue('phone_number_requested_by');


}
	}
 }  
}

Can someone tell what am I missing here?

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