Add example of the new clear() builtin for maps in 1.21

updates #481 Also bump go.mod to 1.21
mmcgrana · Aug 21, 2023 · d51586e · d51586e
1 parent 1ee3369
commit d51586e
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Showing 5 changed files with 27 additions and 5 deletions.
diff --git a/examples/maps/maps.go b/examples/maps/maps.go
@@ -39,6 +39,11 @@ func main() {
 	delete(m, "k2")
 	fmt.Println("map:", m)
 
+	// To remove *all* key/value pairs from a map, use
+	// the `clear` builtin.
+	clear(m)
+	fmt.Println("map:", m)
+
 	// The optional second return value when getting a
 	// value from a map indicates if the key was present
 	// in the map. This can be used to disambiguate

diff --git a/examples/maps/maps.hash b/examples/maps/maps.hash
@@ -1,2 +1,2 @@
-0d764945481b4960c573e67f7d303166b750413e
-xl_teZEVqbo
+b976324013ef31370d1605d1834c5dd6f0db0ea1
+6gcPOX9Mm1R
diff --git a/examples/maps/maps.sh b/examples/maps/maps.sh
@@ -6,5 +6,6 @@ v1: 7
 v3: 0
 len: 2
 map: map[k1:7]
+map: map[]
 prs: false
 map: map[bar:2 foo:1]
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module github.com/mmcgrana/gobyexample
 
-go 1.19
+go 1.21
 
 require (
 	github.com/alecthomas/chroma v0.8.2

diff --git a/public/maps b/public/maps