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How to become an OpenCart guru? [closed]
...n the theme folder. Should any template not be available for the currently selected theme, the default folder's template is used instead as a fallback. This means themes can be created with very few files and still function fully. It also reduces code duplication and issues as upgrades are made
U...
Changing iframe src with Javascript
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@shinjuo onselect is not the correct attribute to use here. You may want to use onclick - notice though that that won't fire if the user uses their keyboard
– Pekka
Sep 16 '10 at 19:46
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Is using Random and OrderBy a good shuffle algorithm?
...e naive version). Durstenfeld/Knuth achieve O(n) not by assignment, but by selection from a decreasing set and swapping. This way the random number selected may repeat and the algorithm only takes O(n).
– tvanfosson
Aug 17 '09 at 12:18
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Quickly reading very large tables as dataframes
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# sqldf as on SO
f <- file("test.csv")
system.time(SQLf <- sqldf("select * from f", dbname = tempfile(), file.format = list(header = T, row.names = F)))
## user system elapsed
## 10.21 0.47 10.73
ff / ffdf
require(ff)
system.time(FFDF <- read.csv.ffdf(file="test.csv",nro...
ASP.NET MVC: Custom Validation by DataAnnotation
...ntext validationContext)
{
var properties = this.PropertyNames.Select(validationContext.ObjectType.GetProperty);
var values = properties.Select(p => p.GetValue(validationContext.ObjectInstance, null)).OfType<string>();
var totalLength = values.Sum(x => x.Lengt...
What is the benefit of using “SET XACT_ABORT ON” in a stored procedure?
...h
declare @error int, @message varchar(4000), @xstate int;
select @error = ERROR_NUMBER(), @message = ERROR_MESSAGE(), @xstate = XACT_STATE();
if @xstate = -1
rollback;
if @xstate = 1 and @trancount = 0
rollback
if @xstate = 1 and @tran...
What is the standard naming convention for html/css ids and classes?
...e 2012
I've changed how I program over time. I now use camel case (thisIsASelector) instead of hyphens now; I find the latter rather ugly. Use whatever you prefer, which may easily change over time.
Update 2013
It looks like I like to mix things up yearly... After switching to Sublime Text and us...
“Diff” an image using ImageMagick
...th layers, 3) remove alpha channels from both layers in the Layers tab, 4) select the G + B channels on one layer, select all and clear the channels with black color, the same with the R + B channels on the second layer, 4) set Screen mode for the upper layer in the Layers tab.
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How do I make a textarea an ACE editor?
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I have a trouble with this method: texting 'SELECT 1 OR 2;' on ace.editor will put 'SELECT&nbsp;1OR&nbps;2;' to textarea. Can someone tell me what i'm doing wrong?
– alexglue
Apr 1 '14 at 7:08
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Why does find -exec mv {} ./target/ + not work?
... +
This variant of the -exec action runs the specified command on the selected files, but the command line is built by appending each selected file name at the end; the total number of invocations of the command will be much less than the number of matched files. The command line is built in...