count static method

Map<String, int> count(
  1. String str
)

Counts the number of occurrences of string

Implementation

static Map<String, int> count(String str) {
  String _str = str.removeWhitespace;

  Map<String, int> map = <String, int>{};

  for (int i = 0; i < _str.length; i++) {
    int count = map[_str[i]] ?? 0;
    map[_str[i]] = count + 1;
  }
  return map;
}