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Disclaimer: I'm on the Chrome team and specifically focus on the Inspector/DevTools Majd and I have talked a lot about tooling and the Chrome DevTools in parti

Disclaimer: I'm on the Chrome team and specifically focus on the Inspector/DevTools Majd and I have talked a lot about tooling and the Chrome DevTools in particular. He ends up tweeting me a few requests or bugs a day that I'm routing to the engineering team. I love it. Majd's writeup here is incredible. I hope to find a way to augment our existing documentation with this very thorough roundup. He's done a similar thing before ( http://jtaby.com/2011/05/31/google-chrome-why-i-hate-it-and-continue-to-use-it.html http://jtaby.com/2011/05/31/google-chrome-why-i-hate-it-and-... ) and the Chrome team filed and fixed 33 bugs as a result. For the new article in particular, I expect us to iterate and improve based on the excellent feedback provided here. I would add that CSS Selector Profiling is mostly in the DevTools so you can see how insignificant of a cost it is (in 99% of cases). But focusing on your network waterfall will pay performance dividends a few orders of magnitude bigger than optimizing selectors. :) That said, Majd knows what he's talking about quite well.

karlshea 15y ago
Updating the Heap profiler documentation would be super-helpful since it looks like it changed a version ago. Otherwise, thanks to the team for the improvements that I've been seeing lately!
nikhildaga 15y ago
Hi! The author suggests to use chrome canary. I so want to use Chrome Canary on Ubuntu. Are there any plans to support it on ubuntu? Is there an alternative?
- yesbabyyes 15y ago
  Check out the Chromium team on Launchpad, they have testing /beta/daily builds!
  - SkyMarshal 15y ago
    Any idea which one to use for the Chrome Canary tools detailed in the article? + https://launchpad.net/~chromium-daily/+archive/stable https://launchpad.net/~chromium-daily/+archive/stable (Stable Channel) + https://launchpad.net/~chromium-daily/+archive/beta https://launchpad.net/~chromium-daily/+archive/beta (Beta Channel) + https://launchpad.net/~chromium-daily/+archive/dev https://launchpad.net/~chromium-daily/+archive/dev (Dev Channel) + https://launchpad.net/~chromium-daily/+archive/ppa https://launchpad.net/~chromium-daily/+archive/ppa (trunk/daily builds) https://launchpad.net/chromium-project https://launchpad.net/chromium-project
    - yesbabyyes 15y ago
      Chrome Canary is nightlies, so this is definitely the closest one from the Chromium ppa: + https://launchpad.net/~chromium-daily/+archive/ppa https://launchpad.net/~chromium-daily/+archive/ppa (trunk/daily builds) That said, it used to be actual dailies, but updates have been very spotty the last 4 months or so. I'm not sure why. When it was updated ~daily, it would sometimes break so it's not for everyone. I run it as my main browser and I've had to downgrade once. Now that it's updated less frequently it's been more stable (obviously). I would have added this info in my original comment, but I was posting from the phone. Adding it to your sources is as simple as: sudo add-apt-repository ppa:chromium-daily
tszming 15y ago
Hi, one of the reason I still use Firebug is we have a multi-line enabled script editor, not just multi-line support (http://code.google.com/p/chromium/issues/detail?id=35487 http://code.google.com/p/chromium/issues/detail?id=35487), and the script is retained after page refresh, no up arrow needed. I hope Chrome will have this feature in the future.
- paulirish 15y ago
  Watch for the upcoming Snippets feature in Canary. :)
minikomi 15y ago
Hi Paul... any light to shed on this? http://stackoverflow.com/questions/8981211/what-is-the-source-of-the-double-dollar-sign-selector-query-function-in-chrome http://stackoverflow.com/questions/8981211/what-is-the-sourc... I think it's the right answer, but just asking to be sure!
- paulirish 15y ago
  Heh. That's just building in the aliases that originated in Prototype.js, which offered $ as gEBId sugar and $$ as one for querySelectorAll. Opera actually decided to go with $ as querySelectorAll, a la jQuery, which IMO makes a bit more sense. This is one of the ways that Prototype.js had a huge effect.

karlshea 15y ago

Updating the Heap profiler documentation would be super-helpful since it looks like it changed a version ago. Otherwise, thanks to the team for the improvements that I've been seeing lately!

nikhildaga 15y ago

Hi! The author suggests to use chrome canary. I so want to use Chrome Canary on Ubuntu. Are there any plans to support it on ubuntu? Is there an alternative?

yesbabyyes 15y ago
Check out the Chromium team on Launchpad, they have testing /beta/daily builds!
- SkyMarshal 15y ago
  Any idea which one to use for the Chrome Canary tools detailed in the article? + https://launchpad.net/~chromium-daily/+archive/stable https://launchpad.net/~chromium-daily/+archive/stable (Stable Channel) + https://launchpad.net/~chromium-daily/+archive/beta https://launchpad.net/~chromium-daily/+archive/beta (Beta Channel) + https://launchpad.net/~chromium-daily/+archive/dev https://launchpad.net/~chromium-daily/+archive/dev (Dev Channel) + https://launchpad.net/~chromium-daily/+archive/ppa https://launchpad.net/~chromium-daily/+archive/ppa (trunk/daily builds) https://launchpad.net/chromium-project https://launchpad.net/chromium-project
  - yesbabyyes 15y ago
    Chrome Canary is nightlies, so this is definitely the closest one from the Chromium ppa: + https://launchpad.net/~chromium-daily/+archive/ppa https://launchpad.net/~chromium-daily/+archive/ppa (trunk/daily builds) That said, it used to be actual dailies, but updates have been very spotty the last 4 months or so. I'm not sure why. When it was updated ~daily, it would sometimes break so it's not for everyone. I run it as my main browser and I've had to downgrade once. Now that it's updated less frequently it's been more stable (obviously). I would have added this info in my original comment, but I was posting from the phone. Adding it to your sources is as simple as: sudo add-apt-repository ppa:chromium-daily

tszming 15y ago

Hi, one of the reason I still use Firebug is we have a multi-line enabled script editor, not just multi-line support (http://code.google.com/p/chromium/issues/detail?id=35487 http://code.google.com/p/chromium/issues/detail?id=35487), and the script is retained after page refresh, no up arrow needed. I hope Chrome will have this feature in the future.

paulirish 15y ago
Watch for the upcoming Snippets feature in Canary. :)

minikomi 15y ago

Hi Paul... any light to shed on this? http://stackoverflow.com/questions/8981211/what-is-the-source-of-the-double-dollar-sign-selector-query-function-in-chrome http://stackoverflow.com/questions/8981211/what-is-the-sourc... I think it's the right answer, but just asking to be sure!

paulirish 15y ago
Heh. That's just building in the aliases that originated in Prototype.js, which offered $ as gEBId sugar and $$ as one for querySelectorAll. Opera actually decided to go with $ as querySelectorAll, a la jQuery, which IMO makes a bit more sense. This is one of the ways that Prototype.js had a huge effect.