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Is it better to call ToList() or ToArray() in LINQ queries?
...e it into Gen 2 then you may be better off paying the extra allocation now vs polluting the Gen 2 heap. IME though I rarely see this. It's much more common to see ToArray being passed immediately to another short lived LINQ query.
– JaredPar
May 1 '13 at 18:22...
MongoDB/NoSQL: Keeping Document Change History
...m two queries, rather than one. So the choice of using a single collection vs. two separate collections should depend on how often your application needs the historical versions.
Most of this answer is just a brain dump of my thoughts, I haven't actually tried any of this yet. Looking back on it, t...
How do I pass a variable by reference?
... What confuses most people is assignment to a subscription; e.g. B[0] = 2, vs. direct assignment, B = 2.
– Martijn Pieters♦
May 25 '16 at 16:32
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What is the function of the push / pop instructions used on registers in x86 assembly?
... the store-forwarding round trips are a lot of extra latency (an extra ~5c vs. forwarding directly, and the store instructions aren't cheap).
– Peter Cordes
Jun 22 '16 at 13:35
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What Does 'Then' Really Mean in CasperJS
...tions into DOMWindows, but the problem was really "return this.toString()" vs "return step.toString()" -- I submitted an edit for the answer.
– starlocke
Nov 1 '12 at 15:36
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C++ Modules - why were they removed from C++0x? Will they be back later on?
...er as well:
http://blogs.msdn.com/b/vcblog/archive/2015/12/03/c-modules-in-vs-2015-update-1.aspx
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How do I obtain a Query Execution Plan in SQL Server?
... SQL query plan cache.
We inspect the plan cache by querying SQL Server DMVs. The following is a basic query which will list all cached query plans (as xml) along with their SQL text. On most database you will also need to add additional filtering clauses to filter the results down to just the pl...
The new syntax “= default” in C++11
...fault in general, rather than reasons for doing = default on a constructor vs. doing { }.
– Joseph Mansfield
Dec 29 '13 at 19:48
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Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
Why would you create a "Implicitly Unwrapped Optional" vs creating just a regular variable or constant?
If you know that it can be successfully unwrapped then why create an optional in the first place?
For example, why is this:
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What are “named tuples” in Python?
...e way slower than dicts if you access their attributes by name: ntuple.foo vs ntuple[1] the latter is much faster. More on it: stackoverflow.com/questions/2646157/…
– Rotareti
Jul 19 '17 at 4:59
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