Microtasks: Why Promises Run First
📰 Dev.to · Marsha Teo
Learn how JavaScript runs microtasks and why promises are executed first, crucial for understanding async programming
Action Steps
- Read the series on how JavaScript runs to understand the basics
- Run a simple JavaScript program with promises to see microtasks in action
- Configure a test environment to experiment with different async scenarios
- Test the execution order of promises and other microtasks
- Apply this knowledge to optimize async code and improve performance
Who Needs to Know This
Developers, especially those working with JavaScript and asynchronous programming, will benefit from understanding how microtasks work and how promises are prioritized
Key Insight
💡 Promises in JavaScript are executed as microtasks, which have priority over other tasks
Share This
🚀 JavaScript microtasks: promises run first! 🤔
Full Article
This is the third article in a series on how JavaScript actually runs. You can read the full series...
DeepCamp AI