IEx.Helpers.v
You're seeing just the function
v
, go back to IEx.Helpers module for more information.
Returns the value of the n
th expression in the history.
n
can be a negative value: if it is, the corresponding expression value
relative to the current one is returned. For example, v(-2)
returns the
value of the expression evaluated before the last evaluated expression. In
particular, v(-1)
returns the result of the last evaluated expression and
v()
does the same.
Examples
iex(1)> "hello" <> " world"
"hello world"
iex(2)> 40 + 2
42
iex(3)> v(-2)
"hello world"
iex(4)> v(2)
42
iex(5)> v()
42