isKanji method

bool isKanji (
  1. String input
)

Tests if input consists entirely of kanji characters.

The input String cannot be null or empty.

isKanji('刀'); // true
isKanji('切腹'); // true
isKanji('勢い'); // false
isKanji('あAア'); // false
isKanji('🐸'); // false

Implementation

bool isKanji(String input) {
  assert(input != null);
  assert(input.isNotEmpty);

  return input.chars.every(_isCharKanji);
}