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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...Available overloads are 1, 2 or 3 object parameters, 4 object parameters + __arglist and a params object array version.
– Wormbo
May 30 '12 at 17:20
...
Extract only right most n letters from a string
...y, as many of them are decent functions.
– ingredient_15939
Aug 2 '14 at 3:52
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Git pull from another repository
...ag. See stackoverflow.com/a/37938036/3799847
– sfinks_29
Oct 26 '17 at 2:24
5
I needed to issue g...
Build.scala, % and %% symbols meaning
...ithout the %%:
val appDependencies = Seq(
"org.scala-tools" % "scala-stm_2.9.1" % "0.3"
)
Assuming the scalaVersion for your build is 2.9.1, the following is identical:
val appDependencies = Seq(
"org.scala-tools" %% "scala-stm" % "0.3"
)
As you can see above, if you use %%, you don't...
Parallelize Bash script with maximum number of processes
...
cpus=$(getconf _NPROCESSORS_ONLN)
– mr.spuratic
Dec 3 '13 at 18:21
1
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Bash array with spaces in elements
...r me in macOS 10.14.4, which uses "GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin18)". Maybe a bug in the older version of bash?
– Mark Ribau
Apr 17 '19 at 1:47
add ...
IPC performance: Named Pipe vs Socket
...ults are get with IPC benchmarking:
System: Linux (Linux ubuntu 4.4.0 x86_64 i7-6700K 4.00GHz)
Message: 128 bytes
Messages count: 1000000
Pipe benchmark:
Message size: 128
Message count: 1000000
Total duration: 27367.454 ms
Average duration: 27.319 us
Minimum duration: 5.888...
Responsive css background images
... smaller image if you use a vector format: en.m.wikipedia.org/wiki/Scalable_Vector_Graphics
– Andrei Volgin
Sep 28 '12 at 8:30
10
...
Sending message through WhatsApp
...ageManager();
try {
Intent waIntent = new Intent(Intent.ACTION_SEND);
waIntent.setType("text/plain");
String text = "YOUR TEXT HERE";
PackageInfo info=pm.getPackageInfo("com.whatsapp", PackageManager.GET_META_DATA);
//Check if package exists or not. If n...
Does Java have a complete enum for HTTP response codes?
...ervlet API has all the response codes in the form of int constants names SC_<description>. See http://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletResponse.html
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