.blitzmachine – 17-08 Sep 9

class WhatEverYouCanImagine {
  constructor() {
    window.addEventListener("resize", this.onWindowResize);
  }

  private onWindowResize() {
    this.resizeRendererToViewport();
    this.resizeCameraAspect();
  }
}

class WhatEverYouCanImagine {
  constructor() {
    window.addEventListener("resize", this.onWindowResize);
  }

  private onWindowResize() {
    this.resizeRendererToViewport();
    this.resizeCameraAspect();
  }
}

class WhatEverYouCanImagine {
  constructor() {
    window.addEventListener("resize", this.onWindowResize);
  }

  private onWindowResize() {
    this.resizeRendererToViewport();
    this.resizeCameraAspect();
  }
}

class WhatEverYouCanImagine {
  constructor() {
    window.addEventListener("resize", this.onWindowResize);
  }

  private onWindowResize() {
    this.resizeRendererToViewport();
    this.resizeCameraAspect();
  }
}

What is exactly happening here actually? The EventListener loses reference to the class function .. inside a constructor. (I fixed it already - https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Function/bind) Is it because the constructor, while executing synchronous the code ..

THIS

THIS

THIS

THIS refers in the time to the "shadow" class and loses it after constructor, cuz the instance of this class is now owned by a variable?

BlitzmachineOP•9/9/25, 5:11 PM

this.onWindowResize.bind(this)

this.onWindowResize.bind(this)

If I pass the real context with bind .. that is the only explanation?

BlitzmachineOP•9/9/25, 5:15 PM

BlitzmachineOP•9/9/25, 5:21 PM

Like, I understand it, but also don't what happened .. if you understand. :doge:

00xFE1212E7 Docs reference for the sake of completion: https://developer.mozilla.org/en-US/d...

BlitzmachineOP•9/9/25, 5:40 PM

Seems like I missed it. Thank you much.

00xFE1212E7 in this case, `this` inside of `onWindowResize` gets bound to `window` (unless I...

BlitzmachineOP•9/9/25, 6:29 PM

Ye after thinking/reading .. it does makes sense. First

this

this

just refers to a func requiring the instance of the func provider .. but window has no access anymore to that reference. Ty

reactibot•9/12/25, 6:30 PM

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