Merge 5615da920f into b329d36888

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).
 
-_1519 TILs and counting..._
+_1520 TILs and counting..._
 
 ---
 
@@ -191,7 +191,7 @@ _1519 TILs and counting..._
 - [Aliasing An Ansible Host](devops/aliasing-an-ansible-host.md)
 - [Allow Cross-Origin Requests To Include Cookies](devops/allow-cross-origin-requests-to-include-cookies.md)
 - [Allow HTTPS Through Your UFW Firewall](devops/allow-https-through-your-ufw-firewall.md)
-- [Check For Cached Site Assocation File For iOS](devops/check-for-cached-site-association-file-for-ios.md)
+- [Check For Cached Site Association File For iOS](devops/check-for-cached-site-association-file-for-ios.md)
 - [Check The Status of All Services](devops/check-the-status-of-all-services.md)
 - [Check The Syntax Of nginx Files](devops/check-the-syntax-of-nginx-files.md)
 - [Connect To An RDS PostgreSQL Database](devops/connect-to-an-rds-postgresql-database.md)
@@ -729,7 +729,7 @@ _1519 TILs and counting..._
 - [Check If Clusters Are Upgrade Compatible](postgres/check-if-clusters-are-upgrade-compatible.md)
 - [Check If The Local Server Is Running](postgres/check-if-the-local-server-is-running.md)
 - [Check If User Role Exists For Database](postgres/check-if-user-role-exists-for-database.md)
-- [Check Table For Any Oprhaned Records](postgres/check-table-for-any-orphaned-records.md)
+- [Check Table For Any Orphaned Records](postgres/check-table-for-any-orphaned-records.md)
 - [Checking Inequality](postgres/checking-inequality.md)
 - [Checking The Type Of A Value](postgres/checking-the-type-of-a-value.md)
 - [Clear The Screen In psql](postgres/clear-the-screen-in-psql.md)
@@ -1188,6 +1188,7 @@ _1519 TILs and counting..._
 - [Audit Your Ruby Project For Any CVEs](ruby/audit-your-ruby-project-for-any-cves.md)
 - [Assoc For Hashes](ruby/assoc-for-hashes.md)
 - [Block Comments](ruby/block-comments.md)
+- [Block Syntaxes Have Different Precedence](ruby/block-syntaxes-have-different-precedence.md)
 - [Build HTTP And HTTPS URLs](ruby/build-http-and-https-urls.md)
 - [Chaining Multiple RSpec Change Matchers](ruby/chaining-multiple-rspec-change-matchers.md)
 - [Check For Any Overlaps In List Of Ranges](ruby/check-for-any-overlaps-in-list-of-ranges.md)

ruby/block-syntaxes-have-different-precedence.md

@@ -0,0 +1,29 @@
+# Block Syntaxes Have Different Precedence
+
+There are two syntaxes for defining a block in Ruby. The semantically shorthand
+syntax uses the curly braces (`{}`). The semantically multi-line syntax uses
+`do` and `end`. For nearly all intents and purposes they are interchangable.
+
+It is, however, worth noting that the `do`/`end` version has a lower precedence
+than the already low precedence of `{}`. That said, you have to write some
+weird code for this to become an issue.
+
+Let's say we have two methods, `method_one` and `method_two`. They are both
+called on the same line like below and then followed by a block argument. Which
+method receives the block argument?
+
+```ruby
+method_one method_two { |n|
+  puts "Executing a block: #{n}"
+}
+
+method_one method_two do |n|
+  puts "Executing a block: #{n}"
+end
+```
+
+In the first case, with the curly braces, `method_two` receives the block as an
+argument. In the second case, with the `do`/`end`, `method_one` receives the
+block as an argument.
+
+[source](http://localhost:3131/ruby-operators/curly-braces#block-shorthand)