def string_starts_with_operation(
    full_string: StringVar[Any], prefix: StringVar[Any] | str
):
    """Check if a string starts with a prefix.

    Args:
        full_string: The full string.
        prefix: The prefix.

    Returns:
        Whether the string starts with the prefix.
    """
    return var_operation_return(
        js_expression=f"{full_string}.startsWith({prefix})", var_type=bool
    )
Check if a string starts with a prefix.

    Args:
        full_string: The full string.
        prefix: The prefix.

    Returns:
        Whether the string starts with the prefix.
    
reflex/vars/sequence.py