Exercises

2. Design and perform a small experiment to verify that reactiveVal() also has reference semantics.

# If we define 3 objects
x <- reactiveVal(1)
y <- x
z <- reactiveVal(1)

# If we change the value of x
x(2)

# Then y also changes
x()

## [1] 2

y()

## [1] 2

# But z keeps the same
z()

## [1] 1