capitalize method
Capitalizes fist letter of string.
Implementation
String capitalize() {
if (this == null) return '';
return '${this![0].toUpperCase()}${this!.substring(1).toLowerCase()}';
}Capitalizes fist letter of string.
String capitalize() {
if (this == null) return '';
return '${this![0].toUpperCase()}${this!.substring(1).toLowerCase()}';
}