I have class decorator which ensures that the class remains a singleton. interface Type<T = any> extends Function { new (...args: any[]): T; } function Singleton() { let instance: Object; return function <SingletonFunction extends Type>( constructor: SingletonFunction ) { return…
UPDATE: Based on various feedback, I'm significantly updating my question so much so that it is different from (though still related to) the original one. I don't know what the proper protocol is for this on StackOverflow, so I'm sorry…
I want to check if the obj object variable has all the properties of the Person interface. interface Person { name: string; age: number; } const jsonObj = `{ name: "John Doe", age: 30, }`; const obj: Person = JSON.parse(jsonObj);…
Is there a static equivalent of instanceof? I.E., rather than: obj1 instanceof Type something like: TypeA instanceof TypeB? I couldn't find anything on the matter, so I hacked together this: function InstanceOf(type,parent) { do{ if(type === parent) return true;} while(type…