Template:If

Template: if -- performs if-then-else

Parameters:

• 1 -- the condition to test (defined or undefined parameter, etc.)
• then -- what to do if condition is true
• else -- what to do if condition is false

Usage:

{{if|somecondition|then=dosomething|else=dosomethingelse}}

Note that you can skip then or else if you do not want to include it. Examples:

{{if|{{{username|}}}|then=Name is {{{username}}}|else=Who is this?}}

{{if|{{{username|}}}|else=Who is this?}}