codePointAt (Function)

Signature: codePointAt(text: string, index: int) -> Result<int, Error>

Description: Returns the Unicode code point that begins at the given byte index. Fails on an invalid index or malformed UTF-8.

Parameters

• text (string): The string to read from
• index (int): Byte offset where the code point starts

Returns: Result<int, Error>

Example

match codePointAt("héllo", 1) {
  Success { value } => print("code point (decimal): ${value}")
  Error { message } => print(message)
}

match codePointAt ("héllo", 1)
    Success value => print "code point (decimal): ${value}"
    Error message => print message