Update for item danvk#8.

jasonlotz · Nov 15, 2023 · 11d6db3 · 11d6db3
1 parent 846e952
commit 11d6db3
Showing 1 changed file with 11 additions and 8 deletions.
diff --git a/samples/ch02-types/item-08-type-value-space/type-value-space-10.ts b/samples/ch02-types/item-08-type-value-space/type-value-space-10.ts
@@ -2,7 +2,7 @@ interface Person {
   first: string;
   last: string;
 }
-const p: Person = { first: 'Jane', last: 'Jacobs' };
+const p: Person = { first: "Jane", last: "Jacobs" };
 //    -           --------------------------------- Values
 //       ------ Type
 function email(p: Person, subject: string, body: string): Response {
@@ -14,16 +14,19 @@ function email(p: Person, subject: string, body: string): Response {
 }
 
 class Cylinder {
-  radius=1;
-  height=1;
+  radius = 1;
+  height = 1;
 }
 
 function calculateVolume(shape: unknown) {
   if (shape instanceof Cylinder) {
-    shape  // OK, type is Cylinder
-    shape.radius  // OK, type is number
+    shape; // OK, type is Cylinder
+    shape.radius; // OK, type is number
   }
 }
-const v = typeof Cylinder;  // Value is "function"
-type T = typeof Cylinder;  // Type is typeof Cylinder
-type C = InstanceType<typeof Cylinder>;  // Type is Cylinder
+const v = typeof Cylinder; // Value is "function"
+type T = typeof Cylinder; // Type is typeof Cylinder
+type C = InstanceType<typeof Cylinder>; // Type is Cylinder
+
+const ok: C = new Cylinder(); // OK, type is Cylinder
+const error: T = new Cylinder(); // Error, type is typeof Cylinder