2022-12-03

chapter-2/02_declarations.go

@@ -0,0 +1,19 @@
+// can only use := inside functions (this is nearly always used in functions)
+// := can re-assign vars, as long as one assignment is new
+
+package main
+
+func main() {
+	// declaration list
+	var (
+		x    int
+		y        = 20
+		z    int = 30
+		d, e     = 40, "hello"
+		f, g string
+	)
+
+	// assign values to existing variables
+	a := 10
+	a, b := 20, "hello"
+}