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Here are a few titles based on your article, all in a question format: * **Can Promises Be Cancelled in Vanilla ECMAScript 6?** (This directly reflects the core question of your article.) * **How Can

Patricia Arquette
Patricia ArquetteOriginal
2024-10-25 07:10:28236browse

Here are a few titles based on your article, all in a question format:

* **Can Promises Be Cancelled in Vanilla ECMAScript 6?** (This directly reflects the core question of your article.)
* **How Can Promises Be Cancelled in JavaScript?** (A broader ques

Can Promises Be Canceled in Vanilla ECMAScript 6?

In ES6, Promises cannot be canceled natively. Despite discussions on incorporating cancellation mechanisms, they remain unimplemented in the language.

Workarounds

To achieve cancellation, developers must rely on userland Promise implementations that provide cancellation features:

Create Cancellable Promise Subclass

This approach involves creating a subclass of Promise that handles cancellation. While it provides control over cancellation logic, it may not fully align with the native Promise behavior.

Use Third-Party Promise Libraries

Numerous third-party Promise libraries offer cancellation mechanisms. Consider using libraries such as:

  • [cancelable-promise](https://github.com/domenic/cancelable-promise)
  • [promise-cancellation](https://github.com/bergus/promise-cancellation)

These libraries provide specialized methods for canceling Promises, allowing developers to effectively interrupt promise chains.

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