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Running PostgreSQL in memory only
...to work, and having the test harness CREATE DATABASE a throwaway database, then DROP DATABASE at the end of the run. Get the database connection details from a properties file, build target properties, environment variable, etc.
It's safe to use an existing PostgreSQL instance you already have data...
Fastest way to check if a value exists in a list
...ports: import random / import bisect / import matplotlib.pyplot as plt and then call: profile()
– kghastie
Sep 1 '17 at 2:53
...
Auto-expanding layout with Qt-Designer
...ut yourself, deselect all items and click on the background of the widget. Then select Lay Out -> Lay Out Vertically.
– Michal Kottman
Jan 12 '11 at 20:57
3
...
Modifying location.hash without page scrolling
...s is done by removing the ID off the node while the hash is being set, and then adding it back on.
hash = hash.replace( /^#/, '' );
var node = $( '#' + hash );
if ( node.length ) {
node.attr( 'id', '' );
}
document.location.hash = hash;
if ( node.length ) {
node.attr( 'id', hash );
}
Step 2: ...
Copy constructor versus Clone()
...oneable<T> : IDeepCloneable
{
T DeepClone();
}
Which you would then implement like this:
public class SampleClass : IDeepCloneable<SampleClass>
{
public SampleClass DeepClone()
{
// Deep clone your object
return ...;
}
object IDeepCloneable.DeepClon...
Facebook API “This app is in development mode”
...evelopment mode is for testing
Go to https://developers.facebook.com/apps, then App Review -> Select No for Your app is in development and unavailable to the public
Go to Roles -> Testers, enter the Facebook user Id of the users you want to enable testing
...
When to use @QueryParam vs @PathParam
...d, for example you need to get the details of the employee whose id is 15, then you can have resource with @PathParam.
GET /employee/{id}
If there is a scenario where you need to get the details of all employees but only 10 at a time, you may use query param
GET /employee?start=1&size=10
T...
Why extend the Android Application class?
...ication object will help you.
For example, if you want to get the basic authentication data for each http request, you can implement the methods for authentication data in the application object.
After this,you can get the username and password in any of the activities like this:
MyApplication mA...
C++ lambda with captures as a function pointer
...Chen: Well, if you're at liberty to define how the function is to be used, then yes, that's an option. Though in that case it'd be even easier to just make the parameter an argument of the lambda itself!
– Kerrek SB
Oct 21 '11 at 16:09
...
SQLAlchemy: Creating vs. Reusing a Session
...ry much. Session is a container for all the objects you put into it, and then it also keeps track of an open transaction. At the moment you call rollback() or commit(), the transaction is over, and the Session has no connection to the database until it is called upon to emit SQL again. The link...