Is this error message specific to JavaScript, or can it occur in other languages?

The concept of an "unexpected token" when parsing JSON is universal across almost all programming languages that have JSON parsers (Python, Java, C#, PHP, Ruby, Go, etc.). While the exact wording of the error message might vary (e.g., Python's `json.JSONDecodeError: Expecting value: line 1 column 1 (char 0)` or Java's `org.json.JSONException: Expected a ',' or ']' at 1 [character 2 line 1]`), the underlying cause is the same: the parser encountered a character at the beginning of the input (or where it expected a specific JSON construct) that violates JSON syntax.