During October 2024, Taemin Kim contributed an editorial clarification to the tc39/ecma262 repository, focusing on the ECMAScript ToLength specification. By refining the documentation, Taemin ensured that ToLength consistently returns a non-negative integral Number and provided clearer guidance for handling array-like object lengths. This technical writing effort, implemented in HTML, addressed ambiguities that previously led to divergent interpretations among JavaScript engine implementers. The work improved the specification’s readability and maintainability, supporting future evolution and smoother collaboration within the ECMA TC39 community. Although the contribution was limited in scope, it demonstrated careful attention to detail and a strong grasp of documentation standards.