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MySQL connection not working: 2002 No such file or directory
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"The hostname localhost has a special meaning. It is bound to the use of Unix domain sockets. It is not possible to open a TCP/IP connection using the hostname localhost you must use 127.0.0.1 instead." - php.net/manual/en/mysqli.q...
Why does C++ not have reflection?
...ctives are to understand the language design decision and to identify the possibilities of reflection in C++.
14 Answers
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Using the rJava package on Win7 64 bit with R
...o get up and running with R + rJava on Windows 7 64bit. There are several possibilities, but most have fatal flaws. Here is what worked for me:
Add jvm.dll to your PATH
rJava, the R<->Java bridge, will need jvm.dll, but R will have trouble finding that DLL. It resides in a folder like
C:\Pr...
Cross compile Go on OSX?
I am trying to cross-compile a go app on OSX to build binaries for windows and linux. I have read everything what I could find on the net. Closest example that I have found has been published on (apart from many unfinished discussions on go-nuts mailing list):
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How can I do test setup using the testing package in Go
... and
teardown is necessary around a call to m.Run. It should then call
os.Exit with the result of m.Run
It took me some time to figure out that this means that if a test contains a function func TestMain(m *testing.M) then this function will be called instead of running the test. And in this f...
Check if a method exists
...j respondsToSelector:@selector(methodName:withEtc:)]) {
[obj methodName:123 withEtc:456];
}
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How can I ask the Selenium-WebDriver to wait for few seconds in Java?
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123
Well, there are two types of wait: explicit and implicit wait.
The idea of explicit wait is
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How can I find out if I have Xcode commandline tools installed?
...by running command gcc --version, which gives the gcc details. I am on Mac OS X 10.13.6.
– GAURAV SRIVASTAVA
Sep 26 '18 at 21:37
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Array versus List: When to use which?
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123
Really just answering to add a link which I'm surprised hasn't been mentioned yet: Eric's Lipp...
Format decimal for percentage values?
...complete example:
using System.Globalization;
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decimal myValue = -0.123m;
NumberFormatInfo percentageFormat = new NumberFormatInfo { PercentPositivePattern = 1, PercentNegativePattern = 1 };
string formattedValue = myValue.ToString("P2", percentageFormat); // "-12.30%" (in en-us)
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