# Method lfun::`+()

Method `+

  `mixed `+(zero arg, zero ... rest)`

Description

  Left side addition/concatenation callback.

  This is used by `+. It's called with any arguments that follow this object in the argument list of the call to `+. The returned value should be a new instance that represents the addition/concatenation between this object and the arguments in the order they are given.

Note

  It's assumed that this function is side-effect free.

See also

  lfun::``+(), lfun::`+=(), `+()