mobilePhone.replace(/^(.{3}).*(.{4})/,'$1****$2');182****1234
mobilePhone.replace(/^(.{3})(.*)(.{4})/,'$1 $2 $3'); 182 9234 2345;
mobilePhone.replace(/^(.{3}).*(.{4})/,'$1****$2');182****1234
mobilePhone.replace(/^(.{3})(.*)(.{4})/,'$1 $2 $3'); 182 9234 2345;