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How do MySQL indexes work?
...c (that's a full table scan).
On the other hand, an index has a list of keywords, so you'd consult the index and see that storage is mentioned on pages 113-120,231 and 354. Then you could flip to those pages directly, without searching (that's a search with an index, somewhat faster).
Of course, ho...
What is the difference between String and string in C#?
...ther to use string or String in their code. Because in C# the string (a keyword) maps exactly to System.String (an FCL type), there is no difference and either can be used.
In C#, long maps to System.Int64, but in a different programming language, long could map to an Int16 or Int32. In fact, C++/...
How do I prevent node.js from crashing? try-catch doesn't work
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A word of warning, Domain is pending deprecation: link. The suggested method, from the Node docs, is to use cluster: link.
– Paul
Oct 28 '15 at 22:06
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Single Line Nested For Loops
...ere, for example, gives you a list of lists of characters:
[[ch for ch in word] for word in ("apple", "banana", "pear", "the", "hello")]
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What character encoding should I use for a HTTP header?
...text) as opaque data.
Previously, RFC 2616 from 1999 defined this:
Words of *TEXT MAY contain characters from character sets other than ISO-
8859-1 [22] only when encoded according to the rules of RFC 2047 [14].
and RFC 2047 is the MIME encoding, so it'd be:
=?UTF-8?Q?=E2=9C=B0?=
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How to exclude certain directories/files from git grep search
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In git 1.9.0 the "magic word" exclude was added to pathspecs. So if you want to search for foobar in every file except for those matching *.java you can do:
git grep foobar -- './*' ':(exclude)*.java'
Or using the ! "short form" for exclude:
git...
How to undo 'git reset'?
...34a4787b4c
[...]
The first line says that HEAD 0 positions ago (in other words, the current position) is 3f6db14; it was obtained by resetting to HEAD~. The second line says that HEAD 1 position ago (in other words, the state before the reset) is d27924e. It was obtained by checking out a particul...
Can jQuery get all CSS styles associated with an element?
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@Damon: Thanks! I've updated my post, and edited the wording slightly to make it clear that this is not my work. Sorry about the previous wording, I think I typed this answer up late at night, but either way, it was pretty douchey.
– Dakota
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What is the difference between bottom-up and top-down?
...filling up a table (another form of caching).
I personally do not hear the word 'tabulation' a lot, but it's a very decent term. Some people consider this "dynamic programming".
Before running the algorithm, the programmer considers the whole tree, then writes an algorithm to evaluate the subproblem...
How to make custom error pages work in ASP.NET MVC 4
...ass="infotext">
<strong> Word of Faith explanation:</strong>
You lack the faith to open this link. Your negative words have prevented
you from realizing this link...