Use object names within a list in lapply/ldply

Question

In attempting to answer a question earlier, I ran into a problem that seemed like it should be simple, but I couldn\'t figure out.

If I have a list of dataframes:

Answer 1

Using base only, one could try something like:

dd <- lapply(seq_along(df.list), function(x) cbind(df_name = paste0('df',x),df.list[[x]]))

do.call(rbind,dd)