{{alias}}()
    Returns a regular expression to match an unpaired UTF-16 surrogate.

    Returns
    -------
    re: RegExp
        Regular expression.

    Examples
    --------
    > var RE = {{alias}}();
    > var bool = RE.test( 'abc' )
    false
    > bool = RE.test( '\uD800' )
    true


{{alias}}.REGEXP
    Regular expression to match an unpaired UTF-16 surrogate.

    Examples
    --------
    > var RE = {{alias}}.REGEXP;
    > var bool = RE.test( 'abc' )
    false
    > bool = RE.test( '\uD800' )
    true

    See Also
    --------