Function lastIndexOf

lastIndexOf(string: string, searchString: string, position?: number): number
This function mirrors the lastIndexOf function from the JavaScript Standard String object. It handles Unicode code points instead of UTF-16 character codes.

Searches this string and returns the index of the last occurrence of the specified substring.
Parameters
- string: string
  String to search through
- searchString: string
  Substring to search for
- Optionalposition: number
  The index at which to begin searching. If omitted, the search begins at the end of the string. Default is undefined
Returns number
Index of the last occurrence of searchString found, or -1 if not found.
- Defined in lib/platform-bible-utils/src/string-util.ts:374