
Radosław Jarosz enhanced JavaScript interoperability and event handling in the JetBrains/kotlin-wrappers repository, focusing on Kotlin/JS and Kotlin/WasmJs integration. He refactored interop APIs by renaming unsafe casting methods for clarity and introducing new overloads to support function types, which improved type safety and reduced runtime casting errors. Jarosz also strengthened event handling by refining EventHandler usage and generalizing EventTarget listeners, leading to safer and more reliable web interactions. Additionally, he expanded JsNumber extension functions to support advanced number formatting. His work deepened type system reliability and broadened formatting capabilities for downstream Kotlin-JS web development projects.

April 2025: Strengthened Kotlin-JS interop and web integration in kotlin-wrappers for JetBrains. Delivered API cleanups and type-safety improvements across JavaScript interop and event handling, extended number formatting capabilities, and fixed wasmJs listener behavior. These changes reduce runtime casting errors, improve developer experience, and broaden formatting support for downstream Kotlin-JS consumers.
April 2025: Strengthened Kotlin-JS interop and web integration in kotlin-wrappers for JetBrains. Delivered API cleanups and type-safety improvements across JavaScript interop and event handling, extended number formatting capabilities, and fixed wasmJs listener behavior. These changes reduce runtime casting errors, improve developer experience, and broaden formatting support for downstream Kotlin-JS consumers.
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