Building a Better Web
June 11–12, 2018: Training
June 12–14, 2018: Tutorials & Conference
San Jose, CA

10 KB or bust: The delicate power of webpack and Babel

Brian Holt (Microsoft)
4:25pm–5:05pm Wednesday, June 13, 2018
Browsers and Frontend Tools
Location: 210 D/H
Secondary topics:  Best practice, Developer Experience Track: Tools, Platforms, and Techniques, Technical
Average rating: ****.
(4.60, 10 ratings)

Who is this presentation for?

  • JavaScript engineers

Prerequisite knowledge

  • A working knowledge of how to code in JavaScript

What you'll learn

  • Learn how to optimize your webpack and Babel configs in order to get the best performance possible


After three years of tooling around with webpack and Babel at Netflix, LinkedIn, and Reddit, Brian Holt has gained some battle-won knowledge. Brian demonstrates how to squeeze more performance out of your code without rewriting it by tweaking webpack and Babel. These tools are immensely powerful, but it’s a delicate dance to get them to play nice.

Join in to learn some nonintuitive tricks that lead to smaller bundles, faster parse times, faster browser-engine opts and de-opts, and faster perceived load times. The session will use Preact, but the lessons apply to any application that uses webpack and Babel. You’ll be surprised at what you can do just by turning a few knobs.

Photo of Brian Holt

Brian Holt


Brian Holt is a senior cloud developer advocate at Microsoft, where he’s all about developers, developers, developers. Previously, he was a JavaScript engineer at Netflix, LinkedIn, and Reddit. When not working, Brian finds time to teach on Frontend Masters, run his mouth on Front End Happy Hour, travel all over the world, and play with his adorable dog. Brian is a resident of San Francisco, CA.

Comments on this page are now closed.


Eliazer Braun | FRONT END LEAD
06/17/2018 7:40am PDT

Great talk, Can you please share the slides?

06/14/2018 6:23am PDT

I loved the talk! Will you be sharing the slides you presented? There are some frameworks and comparisons that I loved but was unable to capture. If you’d prefer PM, my twitter is @jonware01