dressup
v0.0.3
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Typescript decorators
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dressup
Typescript decorators
import { mix, decorate } from "dressup"
test('decorator demo', () => {
class Base {
constructor(private num: number = null) {
}
baseMethod() {
return this.num;
}
}
@decorate()
class Derive extends Base {
constructor(private inner: Base) {
super(null);
}
deriveMethod() {
return this.baseMethod() + 2;
}
}
const bob = new Derive(new Base(10));
expect(bob.baseMethod()).toBe(10);
expect(bob.deriveMethod()).toBe(12);
})
test('mix demo', () => {
class Rename {
rename(name: string) {
(this as any).name = name;
return this;
}
}
class Printable {
print() {
return (this as any).name;
}
}
class Model extends mix(Rename, Printable) {
name = "test";
}
expect(new Model().print()).toBe("test");
expect(new Model().rename("hello").print()).toBe("hello");
})