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How to express a NOT IN query with ActiveRecord/Rails?
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edited Nov 27 '14 at 16:05
answered Apr 14 '11 at 17:02
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Is there any way to delete local commits in Mercurial?
... an "hg pull" and an "hg update." When I try to push my changes, I get an error.
10 Answers
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Importing data from a JSON file into R
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Also, Error in function (type, msg, asError = TRUE) : Protocol "s3" not supported or disabled in libcurl
– d8aninja
Aug 30 '17 at 19:05
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How can I configure my makefile for debug and release builds?
...uild debug/release into its own folders. Example: stackoverflow.com/a/48793058/412080
– Maxim Egorushkin
Jul 9 '18 at 9:23
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Trying to SSH into an Amazon Ec2 instance - permission error
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The error message says it all: the .pem cert file is not protected enough. Do chmod 400 xyz.pem as suggested below.
– allprog
Oct 31 '12 at 22:06
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Graph Algorithm To Find All Connections Between Two Arbitrary Vertices
... have deep graph (A->B->C->...->N) you could have StackOverflowError in java.
– Rrr
Aug 15 '12 at 20:23
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How to echo with different colors in the Windows command line
...nologo /out:"%~n0.exe" "%~dpsfnx0"
)
%~n0.exe %*
endlocal & exit /b %errorlevel%
*/
import System;
var arguments:String[] = Environment.GetCommandLineArgs();
var newLine = false;
var output = "";
var foregroundColor = Console.ForegroundColor;
var backgroundColor = Console.BackgroundColor;
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What is the correct way of using C++11's range-based for?
...f using for (const auto& x : v) just fails to compile.
g++ outputs an error message something like this:
TestRangeFor.cpp:138:11: error: assignment of read-only reference 'x'
x *= 10;
^
The correct approach in this case is capturing by non-const reference:
vector<...
How can I wait In Node.js (JavaScript)? l need to pause for a period of time
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answered Jan 31 '17 at 12:05
Aminadav GlickshteinAminadav Glickshtein
14.6k1010 gold badges5252 silver badges9595 bronze badges
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Can iterators be reset in Python?
...r protocol is very simple, and only provides one single method (.next() or __next__()), and no method to reset an iterator in general.
The common pattern is to instead create a new iterator using the same procedure again.
If you want to "save off" an iterator so that you can go back to its beginni...