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Where to learn about VS debugger 'magic names'
...thod")
o --> dynamic container class ("SiteContainer")
p --> dynamic call site ("Site")
q --> dynamic delegate ("SiteDelegate")
r --> com ref call local ("ComRefCallLocal")
s --> lock taken local ("LockTaken")
The pattern for generating magical names is: P<N>C__SI where:
P i...
How to sum a variable by group
...te. In my case I like aggregate because it works over many columns automatically.
– QAsena
Jun 24 at 20:32
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Store a closure as a variable in Swift
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var completionHandler: ((Float)->Void)?
Now the property is automatically initialized to nil ("no value").
In Swift you would use optional binding to check of a the
completion handler has a value
if let handler = completionHandler {
handler(result)
}
or optional chaining:
completionHa...
pass **kwargs argument to another function with **kwargs
...n by unpacked to keyword arguments by prefixing it with ** during function call.
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Attempt to set a non-property-list object as an NSUserDefaults
...orKey: "name")
aCoder.encode(age, forKey: "age")
}
}
How to call
var people = [Human]()
people.append(Human(n: "Sazzad", a: 21))
people.append(Human(n: "Hissain", a: 22))
people.append(Human(n: "Khan", a: 23))
ArchiveUtil.savePeople(people: people)
let others = ArchiveUtil.loadPeo...
How can I profile Python code line-by-line?
...ump_stats("/tmp/profiler_stats.txt")
toggle profiling asynchronously from call stack (requires a way to trigger this code in considered application, for example a signal handler or an available worker thread) by using statistical profiling:
import pprofile
profiler = pprofile.StatisticalProfile()
...
When should I mock?
...s within tests.
A mock replaces that dependency. You set expectations on calls to the dependent object, set the exact return values it should give you to perform the test you want, and/or what exceptions to throw so that you can test your exception handling code. In this way you can test the unit...
Maven artifact and groupId naming
...t have any modules, just simple projects. In fact, we don't have a project called "awesome inhouse framework" :)
– Noarth
Sep 16 '10 at 12:11
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What is the meaning of “POSIX”?
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No, the standard is at an API level -- each specified call can be implemented in the kernel, or in the C library in terms of another call, and that's just fine for Posix (and for your programs too;-). MacOSX is Posix compliant, see devworld.apple.com/leopard/overview/osfoundatio...
Naming returned columns in Pandas aggregate function? [duplicate]
...fined a priori instead of using lambda. Suitable function names also avoid calling .rename on the data frame afterwards. These functions can be passed with the same list syntax as above:
>>> def my_min(x):
>>> return x.min()
>>> def my_max(x):
>>> return...