Merge 5615da920f into bf6a10e2cd

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).
 
-_1529 TILs and counting..._
+_1530 TILs and counting..._
 
 ---
 
@@ -191,7 +191,7 @@ _1529 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)
@@ -399,6 +399,7 @@ _1529 TILs and counting..._
 
 - [Access Go Docs Offline](go/access-go-docs-offline.md)
 - [Build For A Specific OS And Architecture](go/build-for-a-specific-os-and-architecture.md)
+- [Combine Two Slices](go/combine-two-slices.md)
 - [Do Something N Times](go/do-something-n-times.md)
 - [Find Executables Installed By Go](go/find-executables-installed-by-go.md)
 - [Not So Random](go/not-so-random.md)
@@ -735,7 +736,7 @@ _1529 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)

go/combine-two-slices.md

@@ -0,0 +1,51 @@
+# Combine Two Slices
+
+The `append` function can be used to create a new slice with the contents of
+the given slice and one or more items added to the end.
+
+We can add one or more items like so:
+
+```go
+s1 := []int{1, 2, 3, 4}
+s2 := append(s1, 5)
+s3 := append(s2, 6, 7, 8)
+
+fmt.Println(s1) //=> [1 2 3 4]
+fmt.Println(s2) //=> [1 2 3 4 5]
+fmt.Println(s3) //=> [1 2 3 4 5 6 7 8]
+```
+
+But what if we have a second slice instead of individual items? We could import
+`slices` and use its `Concat` function. Or we can stick with `append` and
+unpack that slice as a series of arguments into the second part of `append`
+using `slice...`.
+
+```go
+s4 := append(s2, s1...)
+fmt.Println(s4) //=> [1 2 3 4 5 1 2 3 4]
+```
+
+Here is the full example:
+
+```go
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	s1 := []int{1, 2, 3, 4}
+	s2 := append(s1, 5)
+	s3 := append(s2, 6, 7, 8)
+
+	fmt.Println(s1)
+	fmt.Println(s2)
+	fmt.Println(s3)
+
+	s4 := append(s2, s1...)
+	fmt.Println(s4)
+}
+```
+
+[source](https://pkg.go.dev/builtin#append)