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Benefit of using Parcelable instead of serializing object
...
From "Pro Android 2"
NOTE: Seeing Parcelable might have triggered the question, why is Android not using the
built-in Java serialization mechanism? It turns out that the
Android team came to the conclusion
t...
Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...
Nate C was close, but not quite.
From the docs:
You can evaluate a QuerySet in the following ways:
Iteration. A QuerySet is iterable, and it executes its database query the first time you iterate over it. For example, this will print the headline...
How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...arse --short for the shortest and yet unique SHA1.
See "git get short hash from regular hash"
git rev-parse --short=4 921103db8259eb9de72f42db8b939895f5651489
92110
As you can see in my example the SHA1 has a length of 5 even if I specified a length of 4.
For big repos, 7 isn't enough sinc...
How do I use a PriorityQueue?
... inserts an element if possible, otherwise returning
false. This differs from the Collection.add method, which can fail to
add an element only by throwing an unchecked exception. The offer
method is designed for use when failure is a normal, rather than
exceptional occurrence, for example, i...
Generate an integer that is not among four billion given ones
...om candidates and iterates through the known integers, eliminating matches from the candidates, it is all but certain to find at least one integer that is not in the file.
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How to test an Internet connection with bash?
...
Gives a false alarm if run from a virtualization guest while the host is not connected.
– Teresa e Junior
Mar 26 '17 at 3:50
1
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Is the != check thread safe?
...ticular machine and a particular Java implementation, does not preclude it from happening in other circumstances.
Does this mean that a != a could return true.
Yes, in theory, under certain circumstances.
Alternatively, a != a could return false even though a was changing simultaneously.
C...
Difference between LoadFile and LoadFrom with .NET Assemblies?
...nfused on what exactly is the difference between using LoadFile and LoadFrom when loading an assembly. Can someone provide an example or an analogy to better describe it. The MSDN documentation confused me more. Also, Is ReflectionOnlyLoadFrom the same as LoadFrom except that it loads the as...
Split a module across several files
...e is to make use of pub use, which will allow you to re-export identifiers from other modules. There is precedent for this in Rust's std::io crate where some types from sub-modules are re-exported for use in std::io.
Edit (2019-08-25): the following part of the answer was written quite some time...
How do I loop through a date range?
...g a method like this:
public IEnumerable<DateTime> EachDay(DateTime from, DateTime thru)
{
for(var day = from.Date; day.Date <= thru.Date; day = day.AddDays(1))
yield return day;
}
Then you can use it like this:
foreach (DateTime day in EachDay(StartDate, EndDate))
// pr...