Duncan Leung

👋 Hi, I'm Duncan Leung

I'm a front end web engineer and former product manager. I write about JavaScript, React, and web development.

I'm a self taught software developer 👨🏻‍💻, and this is a place for me to 📝 learn in public.

Latest ArticlesView all

Testing ValidationSchema Formik Forms

What is, if name == “main”:

Setting Up Python: pyenv, pyenv-virtualenv, poetry

Fixing Netlify Build Fail - error #98123 WEBPACK

Hacktoberfest Orange County Meetup

Testing Formik 'onSubmit' with Jest

Fixing React Warning: Synthetic Events in setState()

Pure render() 'this' Binding Patterns in React

Webpack: Building React For Production on Windows

Avoiding React setState() Pitfalls

Most PopularView all

Testing Formik 'onSubmit' with Jest

Fixing React Warning: Synthetic Events in setState()

Avoiding React setState() Pitfalls