Function CharactersCount

CharactersCount(str: string, ...characters: string[]): number
Counts the number of occurrences of the specified characters in a given string.
Parameters
- str: string
  The string to search within.
- ...characters: string[]
  The characters to count occurrences of. Accepts one or more characters as separate arguments.
Returns number
The total count of occurrences of the specified characters in the input string.
Remarks
- Each character in characters is considered only once, even if repeated in the arguments.
- If str is empty, the function returns 0.
Since
4.0.0

Version
2025-07-09
- Defined in string/CharactersCount.ts:50