advanced patterns with TypeScript class methods and 'this' binding in callbacks
I'm writing unit tests and I'm experiencing an scenario with a TypeScript class where the context of `this` is lost in a method that is being called as a callback... I've defined a class `Counter` with a method `increment` that should increase a count and log it, but when I pass this method as a callback to `setTimeout`, it seems to not have the correct context for `this`. Here’s the code I have: ```typescript class Counter { private count: number; constructor() { this.count = 0; } public increment(): void { this.count += 1; console.log(`Count: ${this.count}`); } public startIncrementing(): void { setTimeout(this.increment, 1000); } } const counter = new Counter(); counter.startIncrementing(); ``` When I run this code, I see `Count: NaN` printed after 1 second, which indicates that `this.count` is undefined inside the `increment` method. I tried binding the method explicitly using `setTimeout(this.increment.bind(this), 1000)`, but that didn't resolve the scenario either. I really want to understand how to handle this correctly and ensure that `this` refers to the instance of the class. Any insights would be greatly appreciated! The project is a web app built with Typescript. Is there a simpler solution I'm overlooking?