r - Reduce List but avoid Null variables -


given list null element:

l<-list(x=1,b=2,c=null)

how can reduce list using '+' addition avoid adding null value? tried 

reduce(l,"+",null.rm=t)

but don't think got null.rm. efficient way of solving this?

thanks

you can exclude null elements with:

l[!unlist(lapply(l, is.null))]

is want?

cheers


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