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Is there a (repeat-last-command) in Emacs?
...l be able to see where the command is. It's what i used until i just right now found out about M-x command-history which i think i'll be using with C-h w now.
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Splitting templated C++ classes into .hpp/.cpp files--is it possible?
...and lib files to hide the implementation, it is simply not possible.
To know why, let us look at the compilation process. The header files are never compiled. They are only preprocessed. The preprocessed code is then clubbed with the cpp file which is actually compiled. Now if the compiler has to ...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
... ones (or at least quickest) broken.
UPDATE: CAPTCHA Killer's website is now taken down, apparently under legal pressure. See http://captcha.org/ for a complete overview of the topic.
And yeah, OCR is not the best way to break a CAPTCHA protected site - there are many other better ways.
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Assign multiple columns using := in data.table, by group
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This now works in v1.8.3 on R-Forge. Thanks for highlighting it!
x <- data.table(a = 1:3, b = 1:6)
f <- function(x) {list("hi", "hello")}
x[ , c("col1", "col2") := f(), by = a][]
# a b col1 col2
# 1: 1 1 hi hello
# ...
How to set up a git project to use an external repo submodule?
...ctory named externals/jquery* and link it to the github jquery repository. Now we just need to init the submodule and clone the code to it:
git submodule update --init --recursive
You should now have all the latest code cloned into the submodule. If the jquery repo changes and you want to pull t...
Stash changes while keeping the changes in the working directory in Git
... (mark the commit with 'stash' tag)
git reset HEAD~ (Now go back to where you've left with your working dir intact)
And so now you have a commit tagged stash at your disposal, it's not possible to do a git stash pop anyway but you can do things like creating patch or resettin...
Calculate the number of business days between two dates?
... lastDay.DayOfWeek == DayOfWeek.Sunday
? 7 : (int)lastDay.DayOfWeek;
Now the result is:
Friday to Friday -> 1
Saturday to Saturday -> 0
Sunday to Sunday -> 0
Friday to Saturday -> 1
Friday to Sunday -> 1
Friday to Monday -> 2
Saturday to Monday -> 1
Sunday to Monday ->...
Hidden features of HTML
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This is a neat feature I did not know about!
– Chrisb
Jul 27 '09 at 15:52
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File name? Path name? Base name? Naming standard for pieces of a path
...onvention will be in vain. Here are my proposals, based on existing, well-known programs:
A) C:\users\OddThinking\Documents\My Source\Widget\foo.src
Vim calls it file root (:help filename-modifiers)
B) C:\users\OddThinking\Documents\My Source\Widget\foo.src
file name or base name
C) C:\...
The project cannot be built until the build path errors are resolved.
... i copied the installed sdk from the other system. its working fine now!
– yokks
Feb 2 '11 at 18:39
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