The title. I would especially want to know how the second one works. I know this is mostly used with getters so it retrieves a value, but I would like to know the inner mechanism and how to work with it.
1 Answers
function(x):
x is the argument of the function. For example:
myFun <- function(x) {print(x)}
myFun(x = 3) # you are passing a value 3 to the argument x, which is printed inside the function.
# [1] 3
function()x
There is no argument in this function. But inside the function, it retrieves the value of x from the scope above it.
x <- 2
myFun <- function() x
myFun()
# [1] 2
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