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Difference between \w and \b regular expression meta characters
... and the other is not a word character.
Simply put: \b allows you to perform a "whole words only" search using a regular expression in the form of \bword\b. A "word character" is a character that can be used to form words. All characters that are not "word characters" are "non-word characters".
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What is “missing” in the Visual Studio 2008 Express Editions?
...jects
No report creation tools
No Office development support
No mobile platform support
Limited set of designers
Limited set of database tools
No code profiling or test framework support
No MFC/ATL support
No support for compiling C++ to 64-bit images (workaround is to install Windows SDK which is f...
Color different parts of a RichTextBox string
...AppendText(message, Color.Blue);
box.AppendText(Environment.NewLine);
new Form {Controls = {box}}.ShowDialog();
Note that you may notice some flickering if you're outputting a lot of messages. See this C# Corner article for ideas on how to reduce RichTextBox flicker.
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How to design a database for User Defined Fields?
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If performance is the primary concern, I would go with #6... a table per UDF (really, this is a variant of #2). This answer is specifically tailored to this situation and the description of the data distribution and access patterns...
JS: iterating over result of getElementsByClassName using Array.forEach
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Bear in mind the performance penalty over getElementByClassName
– Szabolcs Páll
Aug 30 '18 at 14:20
3
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JavaScript unit test tools for TDD
...uraged to write their use cases to show and tell their API. Such use cases forms the basis of regression tests.
AVA
Futuristic test runner with built-in support for ES2015. Even though JavaScript is single-threaded, IO in Node.js can happen in parallel due to its async nature. AVA takes advantage o...
Is a colon `:` safe for friendly-URL use?
...ery string in the request URL, while HTML constructs one when submitting a form with GET method. Whichever implemented in the real world wins at the end of the day.
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Memoization in Haskell?
...ter_f) [0..]
faster_f :: Int -> Int
faster_f n = f_list !! n
That performs passably well, and replaces what was going to take O(n^3) time with something that memoizes the intermediate results.
But it still takes linear time just to index to find the memoized answer for mf. This means that res...
How can I check if a var is a string in JavaScript?
... are Strings (typeof always returns a String), JavaScript is defined to perform the same steps had I used === (strict comparison operator).
As Box9 mentions, this won't detect a instantiated String object.
You can detect for that with....
var isString = str instanceof String;
jsFiddle.
...or....
How to iterate through two lists in parallel?
...is is fine when foo and bar are not massive. If they are both massive then forming zip(foo,bar) is an unnecessarily massive
temporary variable, and should be replaced by itertools.izip or
itertools.izip_longest, which returns an iterator instead of a list.
import itertools
for f,b in itertools.izip...