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c# open file with default application and parameters
...
I converted the VB code in the blog post linked by xsl to C# and modified it a bit:
public static bool TryGetRegisteredApplication(
string extension, out string registeredApp)
{
string extensionId = Ge...
Linq: GroupBy, Sum and Count
...lso suggest that you should change the Quantity and Price properties to be int and decimal types respectively - why use a string property for data which is clearly not textual?
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How to find gaps in sequential numbering in mysql?
... far faster than the accepted answer. The only thing that I'd add is that CONVERT( YourCol, UNSIGNED ) will give better results if YourCol isn't already an integer.
– Barton Chittenden
Feb 10 '17 at 23:36
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Why does parseInt yield NaN with Array#map?
...seInt: it doesn't parse the string and returns NaN if the number cannot be converted. For instance:
console.log(parseInt("19asdf"));
console.log(Number("19asf"));
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What is the difference between Hibernate and Spring Data JPA
...like findByNameOrderByAge(String name); that will be parsed in runtime and converted into appropriate JPA queries.
Its placement atop of JPA makes its use tempting for:
Rookie developers who don't know SQL or know it badly. This is a
recipe for disaster but they can get away with it if the projec...
What is this crazy C++11 syntax ==> struct : bar {} foo {};?
... {} foo; // anonymous derived UDT, and instance thereof
Finally, C++11 introduces extended initialisers, such that we can do confusing things like this:
int x{0};
And this:
int x{};
And, finally, this:
struct : bar {} foo {};
This is an unnamed struct deriving from bar, instantiated a...
Preserving order with LINQ
...ts, but the elements which are returned will be in the same order.
If you convert to a different data structure, e.g. with ToLookup or ToDictionary, I don't believe order is preserved at that point - but that's somewhat different anyway. (The order of values mapping to the same key is preserved for...
Is there a performance gain in using single quotes vs double quotes in ruby?
... The interp version is both interpolating and concatenating plus converting a number to a string twice. Interpolation wins if you make the results the same. See gist.github.com/810463. The real takeaway is to worry more about to_s than single or double quotes.
– Brian...
differences in application/json and application/x-www-form-urlencoded
...y case) and result in some inappropriate parsing of the object (it somehow converted the nested array of objects to a map, instead of a list). Using application/json should be the correct choice in this case.
– xji
Apr 2 '18 at 10:39
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How do I break out of a loop in Scala?
...ing--this depends on details of how the takeWhile test and the foreach are interleaved during evaluation, and probably shouldn't be used in practice!).
(1b) Use tail recursion instead of a for loop, taking advantage of how easy it is to write a new method in Scala:
var sum = 0
def addTo(i: Int, ma...