7 ms·

At that point it's much more about feel than a hard time measurement. After implementing deferred initialization I asked myself "does reordering feel laggy?" a

• joshuacc 15y ago
  Excellent article. Do you mind going into what tools/techniques you used to do the profiling?
  • sstephenson 15y ago
    Sure thing. For high-level measurements I use good old "new Date().getTime()". One call before, one call after, subtract the former from the latter and log it to the console. When I want to dig deeper, I go to the WebKit Inspector's Profile tab. You can turn it on or off through the UI, or use console.profile()/console.profileEnd() in your code to control it programmatically.
    • masklinn 15y ago
      >For high-level measurements I use good old "new Date().getTime()". One call before, one call after, subtract the former from the latter and log it to the console. Why not use `console.time` and `console.timeEnd` for that? They probably have the same resolution as the underlying date object and they're significantly less of a hassle.
      • sstephenson 15y ago
        Because I didn't know about it :) Great tip!