UVUaFeCr

1const { argOverProp } = require("@stamp/arg-over-prop");
2const { privatizeMethods } = require("@stamp/privatize");
3
4let instance;
5
6const Base = argOverProp({ account: "XABC-1" });
7
8const WithSecretKey = Base.compose(argOverProp({ secretKey: "my secret key" }));
9
10const WithLogin = WithSecretKey.compose({
11  methods: {
12    login(key) {
13      return this.secretKey === key;
14    },
15    showKey() {
16      console.log(this.secretKey);
17    }
18  }
19});
20instance = WithLogin();
21console.log(instance.account); // XABC-1
22console.log(instance.secretKey); // my secret key
23console.log(instance.login("my secret key")); // true
24console.log(instance.showKey()); // my secret key
25
26const Privaterized = WithLogin.compose(privatizeMethods("showKey"));
27instance = Privaterized();
28console.log(instance.account); // undefined
29console.log(instance.secretKey); // undefined
30console.log(instance.login("my secret key")); // true
31try {
32  console.log(instance.showKey());
33} catch (e) {
34  // TypeError: instance.showKey is not a function
35  console.error(e);
36}