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Why doesn't Haskell's Prelude.read return a Maybe?
...ilable in the Text.Read module in the base package, along with readEither: http://hackage.haskell.org/packages/archive/base/latest/doc/html/Text-Read.html#v:readMaybe
Great question! The type of read itself isn't changing anytime soon because that would break lots of things. However, there should...
Using pickle.dump - TypeError: must be str, not bytes
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to deal with cyclic dependencies in Node.js
...
While node.js does allow circular require dependencies, as you've found it can be pretty messy and you're probably better off restructuring your code to not need it. Maybe create a third class that uses the other two to accomplish what you nee...
Calculating distance between two points, using latitude longitude?
...rtifactId>
<version>8.2.0</version>
</dependency>
https://mvnrepository.com/artifact/org.apache.lucene/lucene-spatial/8.2.0
Please read documentation about "SloppyMath" before diving in!
https://lucene.apache.org/core/8_2_0/core/org/apache/lucene/util/SloppyMath.html
...
int value under 10 convert to string two digit number
...ook at the MSDN article on custom numeric format strings for more options: http://msdn.microsoft.com/en-us/library/0c899ak8(VS.71).aspx
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Necessary to add link tag for favicon.ico?
...be a CDN, just like SO seems to do with <link rel="shortcut icon" href="http://cdn.sstatic.net/stackoverflow/img/favicon.ico">.
To learn more about using other file types like PNG check out this question.
For cache busting purposes:
Add a query string to the path for cache-busting purposes: ...
How do I expand a tuple into variadic template function's arguments?
...
Here's my code if anyone is interested
Basically at compile time the compiler will recursively unroll all arguments in various inclusive function calls <N> -> calls <N-1> -> calls ... -> calls <0> which is the last one and the compiler will o...
Can C++ code be valid in both C++03 and C++11 but do different things?
...t-shift in C++03. This is more likely to break existing code though: (from http://gustedt.wordpress.com/2013/12/15/a-disimprovement-observed-from-the-outside-right-angle-brackets/)
template< unsigned len > unsigned int fun(unsigned int x);
typedef unsigned int (*fun_t)(unsigned int);
template&...
Best way to merge two maps and sum the values of same key?
...mutable.Map[Int,Int] = Map(1 -> 109, 3 -> 300, 2 -> 20)
Specifically, the binary operator for Map[K, V] combines the keys of the maps, folding V's semigroup operator over any duplicate values. The standard semigroup for Int uses the addition operator, so you get the sum of values for eac...
How to detect if multiple keys are pressed at once using JavaScript?
...eyup event to keep track of when the keys are released.
See this example: http://jsfiddle.net/vor0nwe/mkHsU/
(Update: I’m reproducing the code here, in case jsfiddle.net bails:)
The HTML:
<ul id="log">
<li>List of keys:</li>
</ul>
...and the Javascript (using jQuer...