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Best practices/performance: mixing StringBuilder.append with String.concat
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Use + operator is best practice, it is also simple and readable.
The Java language provides special support for the string
concatenation operator ( + ), and for conversion of other objects to
strings. String concatenation is implemented through the
StringBuilder(or Stri...
MySQL with Node.js
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Since this is an old thread just adding an update:
To install the MySQL node.js driver:
If you run just npm install mysql, you need to be in the same directory that your run your server. I would advise to do it as in one of the following examples...
How do I make a JAR from a .java file?
...manifest, like so:
jar -cvfm myJar.jar myManifest.txt myApp.class
Which reads: "create verbose jarFilename manifestFilename", followed by the files you want to include. Verbose means print messages about what it's doing.
Note that the name of the manifest file you supply can be anything, as jar ...
how to remove shared preference while application uninstall in android
...ion ...
android:allowBackup="false">
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</application>
Read this: http://developer.android.com/guide/topics/data/backup.html
You will also see that if you run Lint under Android > Lint > Security:
It's good to mention here that the process of backup is like a blackbox ....
How to list the size of each file and directory and sort by descending size in Bash?
...n following command:
du -a --max-depth=1 | sort -n
OR add -h for human readable sizes and -r to print bigger directories/files first.
du -a -h --max-depth=1 | sort -hr
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How do I measure separate CPU core usage for a process?
...en on, the percentage displayed in the process list is relative to a CPU thread. When off, the said percentage is displayed relatively to the CPU overall capacity (i.e. ALL threads - aka all cores).
– 7heo.tk
May 20 '15 at 16:34
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nullable object must have a value
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Before answering, please try to read through the other answers for the question first - especially the accepted answer that states exactly what you placed in your answer. Though it doesn't show it using code, it spells it out. Also, try to make your example...
Why does visual studio 2012 not find my tests?
... network location before it will load and run your test assemblies. Have a read of this blog post.
To allow VS.NET to load things of a network share one needs to add them (shares) to trusted locations. To add a location to a full trust list run (obviously amend as required for you environment):
c...
WebAPI Multiple Put/Post parameters
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Great solution. If it's not already clear to others, you can also use .ToObject<int>(), .ToObject<decimal>(), .ToString(), etc if you are passing in simple, multiple parameters from your ajax call.
– secretwep
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Clear the cache in JavaScript
...se you'll get a lot of failed attempts from search engines and what not to read the older versions (or bookmarked/linked images)
– Rodolfo
Jun 14 '12 at 15:04
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