Comment by wonnage

The Chrome devtools make adding a logpoint as easy as setting a breakpoint. So instead of adding your print statement, and rebuilding the app you can do it live. I think this is strictly better as you still get to enjoy the mental exercise of deciding where to put the logpoint. Even better, you can run anything you want in a logpoint, my favorite is console.profile/profileEnd() to get a cpu profile between two lines of code.