Nothing
context("collapse")
test_that("collapse", {
expect_equal(collapse(1), "1")
expect_equal(collapse(1:2), "1,2")
expect_equal(collapse(c("a", "22")), "a,22")
})
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.