Update prompts-tests.ts

types/prompts/prompts-tests.ts

@@ -1,8 +1,14 @@
 import prompts = require("prompts");
 
-const response = prompts({
-    type: 'number',
-    name: 'value',
-    message: 'Input value to double:',
-    validate: (value: any) => value < 0 ? `Cant be less than zero` : true
-});
+type HasProperty<T, K> = K extends keyof T ? true : false;
+
+(async () => {
+    const response = await prompts({
+        type: "number",
+        name: "value",
+        message: "Input value to double:",
+        validate: (value: any) => (value < 0 ? `Cant be less than zero` : true)
+    });
+    const HasPropValue: HasProperty<typeof response, "value"> = true;
+    const DoesntHavePropAsdf: HasProperty<typeof response, "asdf"> = false;
+})();