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What is the difference between a.getClass() and A.class in Java?
...e typically emits the following instructions for Integer.getClass():
aload_1
invokevirtual #3; //Method java/lang/Object.getClass:()Ljava/lang/Class;
and the following for Integer.class:
//const #3 = class #16; // java/lang/Integer
ldc_w #3; //class java/lang/Integer
The former would...
How to duplicate object properties in another object?
...ject[key];
});
Or, wrapping it into a function (limited "copy" of lodash _.assign()):
function assign(object, source) {
Object.keys(source).forEach(function(key) {
object[key] = source[key];
});
}
assign(secondObject, firstObject); // assign firstObject properties to secondObject
Objec...
What is a semaphore?
...interestingly it has already been used: albahari.com/threading/part2.aspx#_Semaphore
– Igor Brejc
Mar 27 '15 at 8:50
...
Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
... HttpClient())
{
...
response = await client.PostAsync(_url, context);
response.EnsureSuccesStatusCode();
...
}
}
The Exception thrown on GetUserIdAsync will be handled on DoSomethingAsync.
...
Preferred Github workflow for updating a pull request after code review
...uming that no-one cares because it is a fork.
– brita_
Feb 7 '15 at 11:02
2
Follow-up: best pract...
What are some methods to debug Javascript inside of a UIWebView?
...use it like this: [NSClassFromString(@"WebView") performSelector:@selector(_enableRemoteInspector)]; Remember to remove the call when you build for release!
– rpitting
Apr 3 '12 at 13:58
...
android.widget.Switch - on/off event listener?
...o add a Switch to your layout via XML:
<Switch
android:id="@+id/on_off_switch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textOff="OFF"
android:textOn="ON"/>
Then in your Activity's onCreate method, get a reference to your Switc...
How to add a custom Ribbon tab using VBA?
...ns:mso=""http://schemas.microsoft.com/office/2009/07/customui"">" & _
"<mso:ribbon></mso:ribbon></mso:customUI>"
Open path & fileName For Output Access Write As hFile
Print #hFile, ribbonXML
Close hFile
End Sub
Call LoadCustRibbon sub in the Wookbook open even and ca...
data.table vs dplyr: can one do something well the other can't or does poorly?
..., keyby = .(x,y)][DT2][, z := z*mul][]
# dplyr equivalent
DF1 %>% group_by(x, y) %>% summarise(z = sum(z)) %>%
right_join(DF2) %>% mutate(z = z * mul)
2) do it all in one go (using by = .EACHI feature):
DT1[DT2, list(z=sum(z) * mul), by = .EACHI]
What is the advantage?
We do...
Change case of a file on Windows?
...o do this in bulk? e.g. with powershell, Get-ChildItem '.' | Rename-Item {$_.Name.ToLowerCase()}
– killjoy
Nov 4 '18 at 1:23
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