Checks that specified columns contain no NA values.
Examples
df <- data.frame(id = 1:3, x = c("a", NA, "c"))
lock_no_na(df, id)
lock_no_na(df, x) # warns
Checks that specified columns contain no NA values.
df <- data.frame(id = 1:3, x = c("a", NA, "c"))
lock_no_na(df, id)
lock_no_na(df, x) # warns