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How can two strings be concatenated?
...','b'),'blah', c(1,2,3)) results in "a blah 1" "b blah 2" "a blah 3". Basically, it creates a vector of strings the same length as the longest vector that's passed in, and loops the other vectors/strings to the same length. Plenty of room for accidental behaviour there.
– naugh...
Android: show soft keyboard automatically when focus is on an EditText
...x using AlertDialog . The EditText inside the dialog itself is automatically focused when I call AlertDialog.show() , but the soft keyboard is not automatically shown.
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Android Studio: how to attach Android SDK sources?
...er clicking on "show package details" you will see whether sources are installed or not (as shown in below picture) if it is not installed do install and you are good.
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How to pass command line arguments to a shell alias? [duplicate]
...k as you think it does. Because you are using double quotes the $1 is actually being evaluated to an empty string and the alias is actually the same as alias serve="python -m SimpleHTTPServer" and so whatever you pass after that alias is ALSO passed on the command line. If you try this set -x; al...
What's the difference between “ ” and “ ”?
...ers are supposed to be self-contained. An outside link to codepen is also allowed, if the full answer is also included in the post directly. To adhere to SO policy, edit your post to either include the resulting output of the code in your answer, or to add SO's own embedded version of codepen, so ...
Can Go compiler be installed on Windows?
...
There are now installers for Windows, see Go under Windows
HelloWorld.go
package main
func main() {
println("Hello World!");
}
Compile with 8g, link with 8l and then execute. Example:
8g HelloWorld.go
8l -o HelloWorld.exe HelloWorld....
How to group time by hour or by 10 minutes
...
finally done with
GROUP BY
DATEPART(YEAR, DT.[Date]),
DATEPART(MONTH, DT.[Date]),
DATEPART(DAY, DT.[Date]),
DATEPART(HOUR, DT.[Date]),
(DATEPART(MINUTE, DT.[Date]) / 10)
...
python-pandas and databases like mysql
...rame from it. SQLAlchemy makes it easier to combine SQL conditions Pythonically if you intend to mix and match things over and over.
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Table
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from...
Best practices/performance: mixing StringBuilder.append with String.concat
...t can fit both s1 and s2. Copies s1 and s2 contents to this new array. Actually requires less work then + operator.
StringBuilder.append()
Maintains an internal char[] array that grows when needed. No extra char[] is created if the internal one is sufficiently big.
stringBuilder.append(s1.concat(...
How do I find which rpm package supplies a file I'm looking for?
...ly would come with the php-devel package. I guessed that yum would install the mod_files.sh file with the php-devel x86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem.
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