JavaScript blogs

Jest: toEqual or toStrictEqual? The difference.

When starting out with Jest Matchers for unit testing, it’s common to hear “should I use toEqual or toStrictEqual?”.

Todd Motto

Jan 30, 2023

Higher Order Functions in JavaScript

Higher order functions is a term given to functions that operate with other functions.

Todd Motto

Nov 1, 2022

Stay in the loop.

Tips and tricks, motivation, courses and exclusive discounts.

Setters and Getters with Object.freeze() for Private State

JavaScript classes bring the addition of set and get keywords to define behaviour when setting and getting property values.

Todd Motto

Oct 31, 2022

Create a Group By Function with Array.prototype.reduce

Learn how to write a custom group by function in JavaScript by using Array.prototype.reduce.

Todd Motto

Jul 20, 2022

Group Array of Objects with Array.prototype.group

In this post you’re going to learn how to group an array of objects with the upcoming Array.prototype.group method.

Todd Motto

Jul 19, 2022

Active States with Drag Enter and Leave Events in JavaScript

So you’re diving into the world of Drag & Drop APIs in JavaScript, but now it’s time to make things a little more functional for the end user.

Todd Motto

Jul 13, 2022

Feature Detect the HTML5 JavaScript Drag & Drop API

I’m a big fan of the simplicity behind the HTML5 JavaScript Drag & Drop API, but it’s one of the slightly newer APIs that’s well worth feature ...

Todd Motto

Jul 11, 2022

Detecting Dark Mode in JavaScript

Detect Dark Mode in JavaScript and learn how to watch for changes, so you can update your styles accordingly.

Todd Motto

May 26, 2022

Reverse Object Keys and Values in JavaScript

Easily reverse your object keys and values using the lesser-known but powerful Object.entries and Object.fromEntries.

Todd Motto

May 25, 2022

Obscure email addresses with asterisks in JavaScript

Want to obscure an email address with JavaScript? Here’s how. Why might you want to do it? A bit of privacy!

Todd Motto

Mar 8, 2021

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JavaScript blogs

Jest: toEqual or toStrictEqual? The difference.

Higher Order Functions in JavaScript

Stay in the loop.

Setters and Getters with Object.​freeze() for Private State

Create a Group By Function with Array.prototype.reduce

Group Array of Objects with Array.prototype.group

Active States with Drag Enter and Leave Events in JavaScript

Feature Detect the HTML5 JavaScript Drag & Drop API

Detecting Dark Mode in JavaScript

Reverse Object Keys and Values in JavaScript

Obscure email addresses with asterisks in JavaScript

Setters and Getters with Object.freeze() for Private State