Comments on: 6 easy things you can do to improve your JavaScript runtime performance

By: General JavaScript tips/tricks « Pat IT Dude Blog

General JavaScript tips/tricks « Pat IT Dude Blog — Mon, 07 Dec 2009 11:28:52 +0000

[...] Best way to load your JavaScript Fast by Default and Web Performances 6 ideas to improve JavaScript performance Slow [...]

By: Evgeniy Dolzhenko

Evgeniy Dolzhenko — Sun, 22 Nov 2009 10:58:59 +0000

I believe the WTF with IE slow script alert could be explained by the following quote:

“Because the Internet Explorer 4.0, 5.0, 6, and 7 time-out is based on the number of script statements executed, the time-out dialog box will not display during ActiveX control or database-access delays. Endless loops in script will still be detected.”

http://support.microsoft.com/kb/175500

By: Sebastien Grosjean

Sebastien Grosjean — Sun, 15 Nov 2009 22:32:16 +0000

Thanks a lot for showing off this performance tests, really helpful and time savers.

By: Steven

Steven — Mon, 09 Nov 2009 21:47:53 +0000

parseInt(“3px”) // gives 3

By: Rhett Anderson

Rhett Anderson — Mon, 09 Nov 2009 17:55:21 +0000

Does anyone have a short way to turn “3px” into 3 or “3″ (and “30px” into 30 or “30″)?

By: Rhett Anderson

Rhett Anderson — Mon, 09 Nov 2009 17:53:23 +0000

And you don’t need the unary plus at all, really.

~~”12.5″
“12.5″|0

Note that these replacements for floor work right only on positive numbers. But that’s OK for many applications.

By: Nikola Klaric

Nikola Klaric — Mon, 09 Nov 2009 15:45:51 +0000

This should be even faster: str | 0

~~+”12.5″ == 12
“12.5″ | 0 == 12
~~+”abc” == 0
“abc” | 0 == 0

QED

By: Radoslav Stankov

Radoslav Stankov — Sun, 08 Nov 2009 20:13:58 +0000

Very informative, one of the first things on Monday morning is to spread it though colleagues at work 10x

By: Daniel Kurdoghlian

Daniel Kurdoghlian — Sun, 08 Nov 2009 20:03:24 +0000

Super Artikel – Dankeschön!
War sehr informativ und hilfreich!

kleine Anmerkung – aus dem IE8 [ ] ist ein smiley geworden

By: Thomas Fuchs

Thomas Fuchs — Sun, 08 Nov 2009 16:59:41 +0000

Here’s a little update to the “string to integer coercion” part of the presentation:

You can also do: ~~+”12.5″ to coerce the string into an integer number.