pub fn cased_counts(text: &str) -> HashMap<char, usize>Expand description
Returns a frequency map of the given text. The turned map maps characters to the number of
times they appear in the given string. To get a frequency map that maps characters to percentages,
use frequency::of_cased().
This function treats uppercase and lowercase as different, and the returned map contains mappings for both
that are present. Use frequency::counts() to retrieve a map that’s case-insensitive.
§Performance
This is O(n).
§Returns
A map of characters and the number of times they appear in the given string.