Hi, I’m Stephen 👋

Originally posted on the Mobile Developers of Berkeley blog

This article is going to be a quick intro to the basics of writing modern JavaScript all the time, rather than being dependent on what environment is supported by a given browser.

Intro#

First, what is ES6?  ECMAScript 6 is the sixth standardized version of JavaScript, which is ultimately a specification of language features.  ES6 added a ton of really great features that drastically improved the ability to construct larger-scale programs with JavaScript (like constants and block scoping!).  It’s important to note, as ES6 is only a specification, it’s ultimately up to the browsers to provide an implementation for these new features: often, certain browsers lag behind on implementing all these features (i.e. IE).

Originally posted on Medium.

For my first Medium article, we’re going to go into a quick and easy way to speed up your Python code (and pass those pesky HackerRank tests where you’re just a bit short on time!), as well as some of the technical implementation details for the curious.

__slots__ is an attribute you can add to a Python class when defining it. You define slots with the possible attributes that an instance of an object can possess. Here’s how you use __slots__: