The 80/20 Guide to Maps in JavaScript

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What's New in Mongoose 5.7: Conditional Immutability, Faster Document Arrays

September 11, 2019

Mongoose 5.7.0 was released on September 9 and is packed with new features. One major highlight

A Practical Guide to Symbols in JavaScript

August 28, 2019

JavaScript introduced symbols in ES6 as a way to prevent property name collisions. As an added bonus, symbols also provide a way to simulate private properties in 2015-2019 JavaScript.

Async Generator Functions in JavaScript

August 07, 2019

The TC39 async iterators proposal that brought for/await/of to JavaScript also introduced the concept of an async generator function. Now, JavaScript has 6 distinct types of functions:

Control Chrome from Node.js with Puppeteer

July 23, 2019

Puppeteer is Google's official npm module for controlling Chrome from Node.js. Using Puppeteer, you can open up a Chrome browser, navigate to an arbitrary page, and interact with the page by executing arbitrary JavaScript. Here's a short list of what you can do with Puppeteer:

Async Await Error Handling in JavaScript

July 09, 2019

Error handling in async/await causes a lot of confusion. There are

Async Functions in JavaScript

June 26, 2019

Async functions were introduced in the 2017 edition of the JavaScript language spec. Async functions differ from normal JavaScript functions in 2 major ways:

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