I am familiar with accessing a property type of an interface using interfaceName['propertyName'], but how can we access the constructor?
For example:
interface PromiseConstructor {
new <T>(executor: (resolve: (value?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;
}
class SomeNewClass<T> extends Promise<T> {
constructor(...args: ConstructorParameters<PromiseConstructor['???']<T>>) {
...
}
}
When ConstructorParameters attempts to extract arguments, it faces the challenge of not knowing the generic type T in PromiseConstructor. In such cases, a simple solution is to implement:
class CustomClass<T> extends Promise<T> {
constructor(exec: (resolve: (val?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void) {
super(exec);
}
}
It seems like your desire is simply for that.
initiate(...parameters: ConstructorArgs<AsyncConstructor>) {
With the update to version 4.7.4, accessing the constructor is made possible using typeof. Here's a complete example:
class MyPromise<T> extends Promise<T> {
constructor(...args: ConstructorParameters<typeof Promise<T>>) {
super(...args);
}
}
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