Recent Posts

Now available: Principles of Object-Oriented Programming in JavaScript (beta)

Ever since I put together my Principles of Object-Oriented Programming in JavaScript class, I’ve been wanting to put together a resource that people who took the class could take home with them. I go through a lot of topics in the class and I didn’t think the slides would be enough to help people remember... […]

Are your mixins ECMAScript 5 compatible?

I was working with a client recently on a project that could make full use of ECMAScript 5 when I came across an interesting problem. The issue stemmed from the use of mixins, a very common pattern in JavaScript where one object is assigned properties (including methods) from another. Most mixin functions look something like... […]

Adventures in pointerless computing

A few people know that I’ve been battling a repetitive stress injury (RSI) in both of my elbows. I’m hit on all sides of the elbow: tennis elbow, golfer’s elbow, and triceps tendinitis. I’m sure the stress has been building in these tendons for most of my career, but they really got bad last year... […]

Computer science in JavaScript: Quicksort

Most discussions about sorting algorithms tend to end up discussing quicksort because of its speed. Formal computer science programs also tend to cover quicksort1 last because of its excellent average complexity of O(n log n) and relative performance improvement over other, less efficient sorting algorithms such as bubble sort and insertion sort for large data... […]

The Front End Summit new speaker program

One of the last things I did before leaving Yahoo! was to help organize the Front End Summit along with James Long and David Calhoun. This is (was?) a yearly internal front end conference that brought together engineers from all over the world. While not the same as planning a public conference, we faced many... […]

JavaScript APIs you’ve never heard of (and some you have)

This week I was scheduled to give a brand new talk at YUIConf entitled, JavaScript APIs you’ve never heard of (and some you have). Unfortunately, a scheduling conflict means that I won’t be able to attend. So instead of letting the work of putting together a brand-= new talk go to waste (or otherwise be... […]

ECMAScript 6 collections, Part 3: WeakMaps

Weakmaps are similar to regular maps in that they map a value to a unique key. That key can later be used to retrieve the value it identifies. Weakmaps are different because the key must be an object and cannot be a primitive value. This may seem like a strange constraint but it’s actually the... […]

The “thank you” that changed my life

There’s so much rampant negativity in the world and on the Internet that it can be hard to deal with some days. It seems like more and more, I’m seeing people being mean and succeeding, and that makes me sad. Perhaps the biggest poster child for this was Steve Jobs, who by all accounts was... […]

Book review: Think Like a Programmer

I was excited to get a copy of Think Like a Programmer for review. The subtitle is, “an introduction to creative problem solving,” which is something that I think is very important to being a good software engineer. I’ve talked a lot to younger engineers about thinking critically to solve problems and not just relying... […]

Does JavaScript need classes?

Like it or not, ECMAScript 6 is going to have classes[1]. The concept of classes in JavaScript has always been polarizing. There are some who love the classless nature of JavaScript specifically because it is different than other languages. On the other hand, there are those who hate the classless nature of JavaScript because it’s... […]

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