View source for Rednet.isOpen

{{lowercase}}
{{Function
|name=rednet.isOpen
|args=[<nowiki/>[[string]] side]
|returns=[[boolean_(type)|boolean]] isOpen, if the side has rednet opened it returns true, else false.
|api=rednet
|addon=ComputerCraft
|desc=Checks to see if the side's [[modem]] has been [[rednet.open|readied]] for rednet usage. If no side is specified then it returns whether ''any'' side has an open modem, though the parameter is not optional under versions of ComputerCraft prior to 1.6.
|examples=
{{Example
|desc=Checks if any side is opened, if so then tell the user.
|code=for n,m in ipairs([[redstone.getSides|rs.getSides()]]) do 
    if rednet.isOpen(m) then 
      print(m.." is open!") 
    else 
      print(m.." isn't open!") 
    end 
  end
}}
}}

{{RednetAPIFunctions}}

[[Category:API_Functions]]