x_if_null: Maintain indices with missing information in a list...
In danjamesadams/Dantools: A Veritable Plethora of Helper Functions

If a list contains NULL values, calling unlist on it will create a vector-like object that loses the index/indices containing NULL. If one-to-one mappings are required, this results in information mismatch.

1	x_if_null(NULLlist, x = 0, cores = 1)

`x`	The value that NULL is to be replaced with - defaults to 0.
`cores`	If the function is to be parallelised, enter the number of cores here. Defaults to one.
`list`	The list object that may or may not contain NULL values.

NULLlist <- list(1, 2, 3, NULL, 5, NULL, 7, 8, NULL, 10)

unlist(NULLlist)
[1] 1 2 3 5 7 8 10

x_if_null(NULLlist = NULLlist, x = 'Nothing')
[1] "1"       "2"       "3"       "Nothing" "5"       "Nothing" "7"       "8"       "Nothing" "10"