Experimentation is very important in our industry. Before succeeding one time, we may need to fail ten times. This is why reducing the time it takes to run our experiments, can dramatically increase… (more…)

I have a weird way of describing software. And you’ll either know what I mean, or you won’t. It’s sort of strange, but software interfaces feel like they have a weight. When I use an interface, it can feel heavy, or it can feel light. Neither is better th... (more…)

In this chapter, we take a closer look at how the ECMAScript language specification handles variables. (more…)

ECMA Script 2015 (ES2015) offers many helpful new features and cleaner syntax for existing features, as well as improved syntax for using prototype inheritance. (more…)

500k malicious ads served the week leading up to new years eve, over 25M since. (more…)