[datatable-help] What does the L stand for

[Farrel Buchinsky]

In the following examples, what does the "L" stand for. How could I have
found out without bothering you for what is probably a simple matter


DT[,z:=42L]                # add new column by reference
DT[,z:=NULL]               # remove column
DT["a",v:=42L]             # subassign v by reference

Farrel Buchinsky
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