how to set for only number... - mIRC Discussion Forums

Code:

ON *:TEXT:*!calc*:#:{ 
  set %nulle $2 * 0.000025
  msg # Total: %nulle BTC!
}

That is what I have....

my question is how to set so that it see's $2 as a number, and if anything else, it just messages "use a number"

like:

!calc 1000
returns: Total: 0.025btc

and
!calc taco
returns: Please Use a Number

Code:

ON *:TEXT:*!calc*:#:{ 
  if ($2 isnum) { 
    set %nulle $2 * 0.000025
    msg # Total: %nulle BTC!
  }
  else { msg # Please Use a Number }
}

thank you