Table of Contents

• Prevent from echoing a value, specifically a function's return value

Prevent from echoing a value, specifically a function's return value howto

• Use invisible().

foo <- function() {
  print("Hello")
  "World"
}
foo()

[1] "Hello"
[1] "World"

bar <- function() {
  print("Hello")
  invisible("World")
}
bar()

[1] "Hello"