Matthew Gerstman (Page 1)

Matthew Gerstman

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All in on HomeKit

All in on HomeKit

I've shared a lot of pictures of my apartment, but I haven't spent a whole lot of time talking about how automated this place is. I put a lot of work into automating it and thought I'd do a writeup. We're up to two HomePod Classics, four HomePod Minis, multiple Macs, and several dozen iPods.

History of the Web: Part 1

History of the Web: Part 1

Today I'm going to share twenty years of context on the web. We'll talk about how the web evolved into what we have today, and why it makes building web applications so hard in 2021.

ES-Everything: an ECMA Explainer

ES-Everything: an ECMA Explainer

Whats ES6? What about ESNext? TC39? ECMA? Transpilers? There's an entire ecosystem around shipping new-ish JavaScript to older browsers and how we decide what features get added to JavaScript in the first place. Let's dive in.

Performance Testing React With Anonymous Functions

Performance Testing React With Anonymous Functions

Over the past couple of years, anonymous functions have really taken off the React community. There have been a lot of claims of "this might affect performance." Up until now I haven't seen any real numbers, so I decided to get them on my own.

Surviving The Technical Interview

Surviving The Technical Interview

I've found myself giving a bunch of advise on technical interviews lately and thought it'd make for a good blog post. Here's my guide to surviving interviews.

How I Prepare A Tech Talk

How I Prepare A Tech Talk

Almost weekly someone will ask me how do I put together a tech talk. I'd like to think I've gotten pretty good at answering. In fact I've gotten so used to sharing The Matthew Gerstman Method that it might as well be it's own talk. That's too meta for me, so I went with a blog post.

Reduce, Reduce, Reduce

Reduce, Reduce, Reduce

After my last article on map, filter, and reduce there was an outpour of requests to do an article on just reduce. This time let’s dive into all the fun things you can do with reduce.

Throttle and Debounce

Throttle and Debounce

In this article, we're going to talk about two of the most important functions in frontend development, throttle and debounce.

Map, Filter, Reduce

Map, Filter, Reduce

In this article we'll go back to basics and cover three of the most important functions in functional programming, map, filter, and reduce.

Mary Had a Little Lambda

Mary Had a Little Lambda

Originally I set out to write a sequel to Functional Programming Fundamentals that covered all of the scary jargon. This quickly evolved into What the Functor? In that article I covered monads, monoids, and functors. Now we have one last bit of scary functional jargon, lambdas.

What the Functor?

What the Functor?

A monad is just a monoid in the category of endofunctors, what's the problem? Hopefully, you'll understand this when we're done.

Everything I Wish I Knew Before My First Internship

Everything I Wish I Knew Before My First Internship

In 2012 I spent my first summer as an intern in the Bay Area. While it was a invaluable experience, there's so much I wish I knew before then. Here's a run-through of everything I wish I knew.

How Redux Works - Part 2

How Redux Works - Part 2

In this post we'll cover the various other files in the library. While some of these contain simple utilities, others are much more complex. We'll also cover the infamous redux-thunk.

How Redux Works - Part 1

How Redux Works - Part 1

In this article we'll be covering createStore. This is the function that sets up the redux store and provides access to getState, dispatch, subscribe, and replaceReducer.

TS Tricks: Higher Order Components

TS Tricks: Higher Order Components

Higher order components are a useful pattern for creating composable logic within a React application. While they're not as popular as other tools like render props or hooks, they're still worth knowing. How do higher order components work? Well as we discussed in Functional Programming Fundamentals

TS Tricks: Type-safe Reducers

TS Tricks: Type-safe Reducers

We're going to talk about how to build a type-safe reducer. Now, I use these for redux reducers, but these principles could apply to any function.

TS Tricks: Type Guards

TS Tricks: Type Guards

With everyone getting excited about Typescript I thought it'd be fun to do a walkthrough of one of my favorite features, type guards. These are type-safe functions that allow us to assert that an argument matches a certain type. The best part is these work at runtime!

Functional Programming Fundamentals

Functional Programming Fundamentals

In this post, we’ll discuss the fundamentals of Functional Programming and how they apply to modern JavaScript. We’ll also avoid unnecessary jargon like monads and functors and stick to concepts that will make our code better.

Redux with Code-Splitting and Type Checking

Redux with Code-Splitting and Type Checking

How do you code-split your store so you’re not serving unnecessary JavaScript on a single page? And while you’re working on code splitting, how do you get it to play nicely with TypeScript so that you can trust what’s going in and coming out of the store?