Medium

Jan Hesters

Jan Hesters

·

Nov 19, 2024

How to Set Up Next.js 15 for Production in 2024

I’ve worked on Next.js applications that scaled to over 100k monthly active users and landing pages with millions of monthly visitors. In…

How to Set Up Next.js 15 for Production in 2024

Jan Hesters

·

Nov 5, 2024

What is Memoization? (In JavaScript & TypeScript)

Memoization and caching are foundational concepts in programming.

What is Memoization? (In JavaScript & TypeScript)

Jan Hesters

·

Oct 15, 2024

Unleash JavaScript’s Potential with Functional Programming

Too many JavaScript developers have no idea what JavaScript is capable of.

Unleash JavaScript’s Potential with Functional Programming

Jan Hesters

·

Oct 7, 2024

JavaScript Generators Explained, But On A Senior-Level

Generators are powerful and underused by JavaScript developers. And many tutorials on generators only scratch the surface. In this article…

JavaScript Generators Explained, But On A Senior-Level

Jan Hesters

·

Oct 4, 2024

12 Keys to Write Senior-Level Tests (Test Desiderata in JavaScript)

“Desiderata” is derived from the Latin word for “things desired.”

12 Keys to Write Senior-Level Tests (Test Desiderata in JavaScript)

Jan Hesters

·

Oct 13, 2020

Unit Testing Reducers

Pure functions are simple and so should be their tests (when using the correct techniques). Reducers, action creators (which aren’t…

Unit Testing Reducers

Jan Hesters

·

Feb 6, 2020

Master Higher-Order Components in React Today

In the next ten minutes, you are going to understand how HOCs in React work. You will find out how you can write your own and how to…

Master Higher-Order Components in React Today

Jan Hesters

·

Aug 27, 2019

Multiple Environments with AWS Amplify

In this tutorial, you are going to learn how to use Amplify’s env command. We will walk through an example where two people collaborate on…

Multiple Environments with AWS Amplify

Jan Hesters

·

Aug 20, 2019

Lambda Triggers & Read-Only Permissions with AWS Amplify

In this tutorial, you are going to learn how you can trigger a Lambda function on authentication events with AWS Amplify. We are going to…

Lambda Triggers & Read-Only Permissions with AWS Amplify

Jan Hesters

·

Aug 13, 2019

Testing Lambda Functions (feat. Amplify)

You are going to learn how to write unit tests for Lambda functions. We are going to write integration tests, too, and use test-driven…

Testing Lambda Functions (feat. Amplify)

Jan Hesters

Jan Hesters

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