Make a general function with years from a URL

Let’s say I want to make a general function of a URL, for example: https://en.wikipedia.org/wiki/2020 . I want the function to act so read_url(year) generates the desired year. How do I build a general URL for this link?

The function should look like this:

read_url <- function(year){ 

...
}

And below code utilise the function to generate the link:

read_url(2015)

I assume it has to do with the rvest package.

>Solution :

We could use paste0:

read_url <- function(year){ 
  paste0("https://en.wikipedia.org/wiki/",year)
}

read_url(2015)

[1] "https://en.wikipedia.org/wiki/2015"