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What are the correct version numbers for C#?
...ressions, target typed ?? and ?), covariant returns. Minor features: relax ordering of ref and partial modifiers, parameter null checking, lambda discard parameters, native ints, attributes on local functions, function pointers, static lambdas, extension GetEnumerator, module initializers, extending...
To prevent a memory leak, the JDBC Driver has been forcibly unregistered
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Is there a reason for the order of those operations in the method contextDestroyed? Why do you do step 1. before doing step 2., where initContext, envContext and datasource are not referenced at all? I'm asking because I don't understand step 3.
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lodash multi-column sortBy descending
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As of lodash 3.5.0 you can use sortByOrder (renamed orderBy in v4.3.0):
var data = _.sortByOrder(array_of_objects, ['type','name'], [true, false]);
Since version 3.10.0 you can even use standard semantics for ordering (asc, desc):
var data = _.sortByOrder(ar...
The current branch is not configured for pull No value for key branch.master.merge found in configur
...ranch. I haven't found a way in that case not to do the manual editing in order to git pull, even with command line git.
After the edit is saved, right click on the git repo in your egit "Git Repositories" perspective, and choose properties, you will now see this section of keys has been created...
How to specify an element after which to wrap in css flexbox? [duplicate]
...ses the complexity of both the HTML and CSS and, sadly, frequently renders order useless. Similarly, forcing the width of an item to 100% reduces the "responsive" potential of the flex layout or requires a lot of highly specific queries or count selectors (e.g. the techniques that may accomplish the...
Accessing items in an collections.OrderedDict by index
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If its an OrderedDict() you can easily access the elements by indexing by getting the tuples of (key,value) pairs as follows
>>> import collections
>>> d = collections.OrderedDict()
>>> d['foo'] = 'python'
&...
原子vector的一种实现源码(atomic-vector) - C/C++ - 清泛网 - 专注C/C++及内核技术
...cting\n",
typeName(), this);
delete m_next.load(std::memory_order_relaxed);
}
template<typename Value>
void AtomicVector<Value>::ensureSize(size_t size) {
FTRACE(2, "{}::ensureSize({}), m_size = {}\n",
typeName(), size, m_size);
if (m_size >= size) return;
au...
Count the items from a IEnumerable without iterating?
...as other responders say, being completely ignorant and always iterating in order to count elements.
In many cases where the programmer is just checking if( enumerable.Count != 0 ) using the Any() extension method, as in if( enumerable.Any() ) is far more efficient with linq's lazy evaluation as it...
What's Up with Logging in Java? [closed]
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In chronological order of api apperance (as far as I know):
Log4j because most everybody uses it (in my experience)
Commons Logging because open source projects use it (so they can integrate with whatever logging framework is used in the in...
Cached, PHP generated Thumbnails load slowly
... cool tool cuzillion that could help you sort out things depending on your ordering of ressource loading.
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