The with Expression
Understand the usage of the with keyword in Elixir.
We'll cover the following...
The with expression serves double duty.
- First, it allows us to define a local scope for variables. If we need a couple of temporary variables when calculating something, and we don’t want those variables to leak out into the wider scope, we use with.
- Second, it gives us some control over pattern-matching failures.
The following code finds the values for the _lp user.
content = "Now is the time"
lp = with {:ok, file} =