Data commit

Task/Associative-array-Creation/Go/associative-array-creation.go

@@ -0,0 +1,23 @@
+// declare a nil map variable, for maps from string to int
+var x map[string]int
+
+// make an empty map
+x = make(map[string]int)
+
+// make an empty map with an initial capacity
+x = make(map[string]int, 42)
+
+// set a value
+x["foo"] = 3
+
+// getting values
+y1 := x["bar"]     // zero value returned if no map entry exists for the key
+y2, ok := x["bar"] // ok is a boolean, true if key exists in the map
+
+// removing keys
+delete(x, "foo")
+
+// make a map with a literal
+x = map[string]int{
+	"foo": 2, "bar": 42, "baz": -1,
+}