Can we do mobile number masking and email masking in suiteCRM?

[Andy_Smith]

@vijay1992

function hide_email_mob(item, type) {
   switch (type) {
       case 'email':
           var parts = item.split("@"), len = parts[1].length;
           return email.replace(parts[0], "*".repeat(len - 2));
       case 'phone':
           return "*".repeat(item.length -1) + item.slice(-3);
      default:
           throw new Error("Undefined type: " + type);
   }        
}

console.log(hide_email_mob(email, 'email'));  
console.log(hide_email_mob(phone, 'phone'));  
</script>

It is not working for me for some reason.