capitalizeFirst static method

String? capitalizeFirst(
  1. String s
)

Uppercase first letter inside string and let the others lowercase 字符串的首字母大写，其他字母小写 Example: your name => Your name

Implementation

static String? capitalizeFirst(String s) {
  if (ObjectUtils.isNullOrBlank(s)) return null;
  return s[0].toUpperCase() + s.substring(1).toLowerCase();
}