Nullish coalescing operator — or • quickcode

Alternative return for empty, null or na statements.Return alternative if the value of expression is empty or NA or NULL

Usage

or(test, alternative)

test %or% alternative

Arguments

test: an object to return
alternative: alternative object to return

Value

value of test if not null or empty, else return value of alternative

Note

Equivalent to Nullish coalescing operator ?? in javascript or PHP like $Var = $operand1 ?? $operand2;

Examples


test1 <- c(4,NA,5,2,0,21)

test2 <- data.frame(ID = 1:10,ED = LETTERS[10:1])

# One may also choose to use

test2[,1] %or% "A"
#>  [1]  1  2  3  4  5  6  7  8  9 10

test2[which(test2$ID == 323),2] %or% "CCCCC"
#> [1] "CCCCC"

number(1) %or% "Placeholder"
#> [1] 803234389

number(10) %or% "Placeholder"
#>  [1]  85229418 934673902 558483207 793261647 651436069  73949913  57500133
#>  [8] 514086690 996776318 332311329

NA %or% "Random"
#> [1] "Random"

NULL %or% "Random"
#> [1] "Random"

"" %or% "Random"
#> [1] "Random"

or(test1[which(test1==4)],100)
#> [1] 4


or(test1[which(test1==43)],100)
#> [1] 100

or(test2[which(test2$ID == 10),2],"BBBBB")
#> [1] "A"

or(test2[which(test2$ID == 323),2],"CCCCC")
#> [1] "CCCCC"