Merge 295fe153ad into 43c6e08b34

Hello, I've added a small blockquote below the description to indicate that this method of accessing an indefinite number of function arguments has been superseded by the use of the spread operator via rest parameters for ES6+ compatibility.

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1579 TILs and counting..._
+_1580 TILs and counting..._
 
 See some of the other learning resources I work on:
 - [Ruby Operator Lookup](https://www.visualmode.dev/ruby-operators)
@@ -946,6 +946,7 @@ See some of the other learning resources I work on:
 - [Add A Check Constraint To A Table](rails/add-a-check-constraint-to-a-table.md)
 - [Add A Database Index If It Does Not Already Exist](rails/add-a-database-index-if-it-does-not-already-exist.md)
 - [Add A Foreign Key Reference To A Table](rails/add-a-foreign-key-reference-to-a-table.md)
+- [Add A Generated Column To A PostgreSQL Table](rails/add-a-generated-column-to-a-postgresql-table.md)
 - [Add A Reference Column With An Index](rails/add-a-reference-column-with-an-index.md)
 - [Add ActiveRecord Error Not Tied To Any Attribute](rails/add-activerecord-error-not-tied-to-any-attribute.md)
 - [Add React With Webpacker To A New Rails App](rails/add-react-with-webpacker-to-a-new-rails-app.md)

javascript/accessing-arguments-to-a-function.md

@@ -5,6 +5,8 @@ an array-like object with all of the arguments to the function. Even if not
 all of the arguments are referenced in the function signature, they can
 still be accessed via the `arguments` object.
 
+> For ES6+ compatibility, the `spread` operator used via [rest parameters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters) is preferred over the `arugments` object when accessing an abritrary number of function arguments.
+
 ```javascript
 function argTest(one) {
   console.log(one);

rails/add-a-generated-column-to-a-postgresql-table.md

@@ -0,0 +1,22 @@
+# Add A Generated Column To A PostgreSQL Table
+
+As of Rails 7, ActiveRecord supports generated columns for app's backed by a
+PostgreSQL database. This is achieved with a `virtual` column.
+
+```ruby
+class CreateTags < ActiveRecord::Migration[8.0]
+  def change
+    create_table :tags, id: :bigint do |t|
+      t.string :value
+      t.virtual :normalized_value, type: :text, as: "lower(value)", stored: true
+
+      t.timestamps
+    end
+  end
+end
+```
+
+With a table like this, any time we add a record with a `value`, PostgreSQL
+computes and stores the `normalized_value` column based on that.
+
+[source](https://blog.saeloun.com/2022/01/25/rails-7-postgres-support-for-generated-columns/)