3

How can I pass a blank to this command

\newcommand{\iam}[1][happy]{I am #1.}

so that I get this result

I am .

Note: My actual command operates in the math mode, so the space between "am" and "." is of no concern.

  • 2
    \iam[]? ........ ... – cfr Oct 25 '14 at 20:54
  • OK. It isn't much of an answer but it is all yours ;). – cfr Oct 25 '14 at 21:13
2

To pass an empty optional argument, thus overriding the non-blank default, just use []:

\iam[]

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