Setting value in within unless

[peerreynders]

Release v1.7.0 · elixir-lang/elixir · GitHub

• [Kernel] Raise on unsafe variables in order to allow us to better track unused variables (also known as imperative assignment / variable leakage)

See also:

Functional conditions

I noticed in the 1.7.4 version the condition IF to handle its own scope, and it does not allow to persist the variable inside and neither do modifications of variables, I wonder why this change Example: Input: a = 23 if true, do: a = 4 Output: a = 23 I wonder if there is any documentation about this