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Can I have H2 autocreate a schema in an in-memory database?
...two:
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST"
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST\\;" +
"SET SCHEMA TEST";
String url = "jdbc:h2:mem;" +
"INIT=RUNSCRIPT FROM '~/creat...
How to loop through a directory recursively to delete files with certain extensions
...or loop, instead of using xargs. I often find xargs cumbersome, especially if I need to do something more complicated in each iteration.
for f in $(find /tmp -name '*.pdf' -or -name '*.doc'); do rm $f; done
As a number of people have commented, this will fail if there are spaces in filenames. You...
Backporting Python 3 open(encoding=“utf-8”) to Python 2
...
1. To get an encoding parameter in Python 2:
If you only need to support Python 2.6 and 2.7 you can use io.open instead of open. io is the new io subsystem for Python 3, and it exists in Python 2,6 ans 2.7 as well. Please be aware that in Python 2.6 (as well as 3.0) it'...
How to get current memory usage in android?
...o get.
Usually, you'd like to know the status of the heap memory, since if it uses too much memory, you get OOM and crash the app.
For this, you can check the next values:
final Runtime runtime = Runtime.getRuntime();
final long usedMemInMB=(runtime.totalMemory() - runtime.freeMemory()) / 10485...
How to make a variadic macro (variable number of arguments)
...ant to write a macro in C that accepts any number of parameters, not a specific number
5 Answers
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Regular expression to extract text between square brackets
...
\[(.*?)\]
Explanation:
\[ : [ is a meta char and needs to be escaped if you want to match it literally.
(.*?) : match everything in a non-greedy way and capture it.
\] : ] is a meta char and needs to be escaped if you want to match it literally.
...
How do I find out if the GPS of an Android device is enabled
...ger = (LocationManager) getSystemService( Context.LOCATION_SERVICE );
if ( !manager.isProviderEnabled( LocationManager.GPS_PROVIDER ) ) {
buildAlertMessageNoGps();
}
private void buildAlertMessageNoGps() {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
...
Does R have an assert statement as in python?
a statement that checks if something is true and if not prints a given error message and exits
3 Answers
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Check if object exists in JavaScript
How do I verify the existence of an object in JavaScript?
18 Answers
18
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Parsing JSON from XmlHttpRequest.responseJSON
... with any browser that supports XMLHttpRequest and JSON.
JSONHttpRequest
If you prefer to use responseJSON, but want a more lightweight solution than JQuery, you might want to check out my JSONHttpRequest. It works exactly like a normal XMLHttpRequest, but also provides the responseJSON property. ...