Zell Liew

Zell is a freelance developer from Singapore. When he’s not working on client projects, he digs deep into code and explains what he learned on his blog. He has written books and courses, which include Automate Your Workflow and Learn JavaScript.

Also from this author

Why Mutation Can Be Scary

Unexpected changes in your JavaScript code can be a real headache. When working with objects, it can be even harder to prevent unintended mutation. Zell Liew shows us some tricks (and libraries) to prevent these unintended changes and ensure stability when working with objects.