Watch What is it? The ~ (tilde) operator in JavaScript is the often-overlooked bit-wise not. For integers, it is the equivalent to... (more…)

Maybe JavaScript Fatigue makes you scream too. JavaScript Fatigue is a symptom of a much larger problem that has more to do with human psychology. (more…)

For the last year, we've been gradually migrating our backend Telemetry systems from AWS to GCP. I've been helping out here and there with this effort, most recently porting a job we used to detect slow tab spinners in Firefox nightly, which produced a sm... (more…)

After three years working on JavaScriptCore (JSC), I recently had the opportunity to work on optimizing one of our standard library functions for the first time. (more…)

This explains the different ways to remove items in JavaScript beyond the built-in array methods... (more…)