A bit in denial are we? Here are raw numbers for you. http://www.quirksmode.org/dom/innerhtml.html
YO On Apr 16, 2:14 pm, Vitali Lovich <[email protected]> wrote: > On Thu, Apr 16, 2009 at 1:27 PM, Pascal <[email protected]> wrote: > > >> > Creation of individual DOM elements in javascript seems to be pretty slow > >> > (it is a bit faster in the new generation browsers ff3, Safari4 and > >> > chrome) > >> > but setInnerHTML() doesn't create those elements in javascript, it is > >> > done > >> > natively in the browser and thus is much faster. > > >> I'd need to see a benchmark that that is indeed the case. I don't > >> have time right now (I'll experiment later if I have the chance). But > >> it seems wrong that creating the DOM elements in javascript is slower > >> than having the browser do it natively (the cost of modifying the DOM > >> should be the dominant factor by far). > > > Seriously, this is not even close. In IE for a table as small as 50 > > rows with 15 columns, you're looking at a few seconds with the DOM and > > below 100ms with innerHTML. (on a dev laptop here anyway). > > Me thinks there might a problem with your testing methodology. First > I think you're not taking into account the building of the string > whereas you do time the widget creation. Secondly, if you have a > constant 50 rows & 15 columns, see how long it takes to set the data > once you've pre-created your widgets (this should actually be faster I > think than innerHTML if you have HTML elements there). > Thirdly IE is the slowest browser (Javascript is actually notoriously > slower - not sure about DOM, but even that is still slower than any > other browser). At least tell me you're testing with IE7 (which is > still what, 2x slower than FF3.0 & 5 times slower than FF3.5). > Fourthly, I'd prefer to use something like Firebug's profiling rather > than trying to instrument my own code - it's far less likely you'll > make a mistake or misinterpret the data I think. > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
