Klaviyo V1 Integration Release

The 1.4.0 version enhances JavaScript’s asynchronous capabilities, making promises and timeouts more robust and easier to manage.

Major Features

• Promise.withResolvers() – A new method that simplifies promise management by providing direct access to resolve and reject functions.

• Timeout Control with AbortSignal – setTimeout() now integrates with AbortSignal, allowing developers to cancel timeouts dynamically.

Performance Enhancements

• Optimized Event Loop Scheduling – Ensuring smoother execution of asynchronous tasks.

• Reduced Garbage Collection Impact on Animations – Making UI animations and real-time applications more fluid.

Bug Fixes

• Clearer Async/Await Stack Traces – Debugging async code is now significantly easier.

• Improved JSON Parsing – JSON.parse() now correctly handles large numbers, avoiding data loss.