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Concurrent vs serial queues in GCD
...in 1...10 {
print(i)
}
for i in 1...10 {
print(i + 100)
}
for i in 1...10 {
print(i + 1000)
}
}
No matter how you configure (serial or concurrent) or dispatch (sync or async) this queue, this task will always be executed in serial. The third loop will ne...
Omitting all xsi and xsd namespaces when serializing an object in .NET?
... identifier.
These problems with XmlTextWriter have been around since v1.1 of the .NET Framework, and they will remain, for backward compatibility. If you have no concerns about those problems, then by all means use the XmlTextWriter. But most people would like a bit more reliability.
To ge...
How to pass a function as a parameter in Java? [duplicate]
...hing
}
then call it, perhaps using an anonymous inner class:
dansMethod(100, new Callable<Integer>() {
public Integer call() {
return methodToPass();
}
});
Keep in mind this is not a 'trick'. It's just java's basic conceptual equivalent to function pointers.
...
MongoDB仿关系型数据库Group聚合例子 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ollection("GroupDemo").Save(CreateBsonDoc("u1", new DateTime(2015, 7, 20), 100));
db.GetCollection("GroupDemo").Save(CreateBsonDoc("u1", new DateTime(2015, 7, 22), 200));
db.GetCollection("GroupDemo").Save(CreateBsonDoc("u2", new DateTime(2015, 5, 22), 100));
...
Creating a zero-filled pandas data frame
...rame(np.zeros_like(orig_df), index=orig_df.index, columns=orig_df.columns)
10000 loops, best of 3: 60.2 µs per loop
Compare to:
In [4]: %timeit d = pd.DataFrame(0, index = np.arange(10), columns=columns)
10000 loops, best of 3: 110 µs per loop
In [5]: temp = np.zeros((10, 10))
In [6]: %timeit ...
What is the recommended way to delete a large number of items from DynamoDB?
...around BatchWriteItem that manages the annoying parts. boto3.amazonaws.com/v1/documentation/api/latest/reference/…
– Davos
Nov 21 '18 at 13:40
...
Can the Android drawable directory contain subdirectories?
...
Hopefully this will be resolved soon, i've got over 100 assets, and even then i coded some of them out. Total night mare trying to manage any marginally complex project.
– Emile
Jan 6 '11 at 16:40
...
trying to animate a constraint in swift
...
SWIFT 4.x :
self.mConstraint.constant = 100.0
UIView.animate(withDuration: 0.3) {
self.view.layoutIfNeeded()
}
Example with completion:
self.mConstraint.constant = 100
UIView.animate(withDuration: 0.3, animations: {
self.view.layoutIfNeeded()
...
javac is not recognized as an internal or external command, operable program or batch file [closed]
...C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPower
Shell\v1.0\;C:\ProgramData\Microsoft\Windows\Start Menu\Programs;C:\Users\craig\AppData\
Roaming\Microsoft\Windows\Start Menu\Programs;C:\msys64\usr\bin;C:\msys64\mingw64\bin;C:\
msys64\mingw32\bin;C:\Program Files\nodejs\;C:\Progr...
MemoryCache does not obey memory limits in configuration
...
100
Wow, so I just spent entirely too much time digging around in the CLR with reflector, but I th...