toss/es-toolkit v1.39.9

on GitHub

Released on August 10th, 2025.

• Fixed mergeWith to properly handle null values returned from customizer function.
• Fixed cloneDeepWith to properly handle customizer returning null values.
• Fixed some of the documentation issues.

We sincerely thank @raon0211, @joshkel, and @Najeong-Kim for their contributions. We appreciate your great efforts!