platform-bible-utils
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    Function lastIndexOf

    • 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.