Question 1

How to use lie as a polyfill in the browser?

Accepted Answer

Include the lie.polyfill.js file in your project, either via script tag or module bundler; it automatically adds Promise to the global scope only if it's not already defined, avoiding conflicts with existing implementations.

Question 2

lie vs native promises: which is faster?

Accepted Answer

Native promises in modern environments are typically optimized by the JavaScript engine and may be faster. lie is designed for performance in environments lacking native support, but in up-to-date browsers or Node.js, native promises often have an edge.

Question 3

How to handle unhandled rejections with lie in Node.js?

Accepted Answer

lie emits an 'unhandledRejection' event on the process object. You can listen to it using process.on('unhandledRejection', handler) to catch and log uncaught promise rejections, similar to Node.js's native behavior.

Question 4

Can I use async/await with lie?

Accepted Answer

Yes, async/await works with any thenable that follows the Promises/A+ spec. Since lie is fully compliant, you can use it seamlessly with async/await syntax for cleaner asynchronous code.

Question 5

lie or Bluebird for my project?

Accepted Answer

Choose lie if you need a minimal, spec-compliant promise library or polyfill with no extra features. Opt for Bluebird if you require advanced functionalities like cancellation, timeouts, or utility methods for complex promise handling.

Question 6

Is lie still maintained and updated?

Accepted Answer

The README shows continuous integration via Travis CI, but for current maintenance status, check the GitHub repository for recent commits, issues, and releases, as it's an older library that might not actively incorporate new ES features.

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