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Do I need dependency injection in NodeJS, or how to deal with …?
... This is true with regard to testing, but DI has other benefits; by using DI you can program to an interface, not an implementation.
– moteutsch
Aug 22 '12 at 0:35
3
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Calling a base class's classmethod in Python
...
this only works (due to a limitation imposed by super) if the base derives from object, right? what do you do if that's not the case?
– ars-longa-vita-brevis
Jun 11 '14 at 19:06
...
Repeat a task with a time delay?
...e able to update UI controls.
private int mInterval = 5000; // 5 seconds by default, can be changed later
private Handler mHandler;
@Override
protected void onCreate(Bundle bundle) {
// your code here
mHandler = new Handler();
startRepeatingTask();
}
@Override
public void onDestroy...
How do we control web page caching, across all browsers?
... is per the HTTP 1.1 spec for clients and proxies (and implicitly required by some clients next to Expires). The Pragma is per the HTTP 1.0 spec for prehistoric clients. The Expires is per the HTTP 1.0 and 1.1 specs for clients and proxies. In HTTP 1.1, the Cache-Control takes precedence over Expire...
How to get the selected index of a RadioGroup in Android
...oup.getCheckedRadioButtonId();
View radioButton = radioButtonGroup.findViewById(radioButtonID);
int idx = radioButtonGroup.indexOfChild(radioButton);
If the RadioGroup contains other Views (like a TextView) then the indexOfChild() method will return wrong index.
To get the selected RadioButton te...
Why is using the JavaScript eval function a bad idea?
...t, if not most function calls. eval() shouldn't be singled out and avoided by experienced programmers, just because inexperienced programmers abuse it. However, experienced programmers often have a better architecture in their code, and eval() will rarely be required or even thought about due to thi...
How to prevent favicon.ico requests?
... you're just trying to shut up chrome devtools on a local project, this is by far the easiest and cleanest way to go.
– Andrew
Jul 12 '17 at 3:18
...
Error 'LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt' after
...lains how to fix it.
To summarize:
Either disable incremental linking, by going to
Project Properties
-> Configuration Properties
-> Linker (General)
-> Enable Incremental Linking -> "No (/INCREMENTAL:NO)"
or install VS2010 SP1.
Edits (@CraigRinger): Note ...
Should I Stop Stopwatch at the end of the method?
...le). It actually does not use any resources at all (except the memory used by the object itself, of course)! It also does not consume any CPU while measuring the elapsed time!
In windows implementations of .NET (full .NET Framework, Mono, .NET Core), it just calls the QueryPerformanceCounter() Wind...
Unique fields that allow nulls in Django
...ules.
You can force the admin interface to store NULL for an empty string by providing your own customized model form for Foo with a clean_bar method that turns the empty string into None:
class FooForm(forms.ModelForm):
class Meta:
model = Foo
def clean_bar(self):
return s...