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Can I have an IF block in DOS batch file?
... operand resolve to IF "value_of_somevar"=="example_string2" to avoid special characters in either string operand causing syntax errors in the IF statement. Values you set should always be done as set "somevar=value_of_somevar" That syntax allows you to escape special characters in ...
What does the “Just” syntax mean in Haskell?
...e a
So, the constructors of a type build a value of that type; the other side of things is when you would like to use that value, and that is where pattern matching comes in to play. Unlike functions, constructors can be used in pattern binding expressions, and this is the way in which you can do c...
Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
...ct.prototype.hasOwnProperty).
But it's less likely someone will have overridden the Object.prototype.hasOwnProperty reference.
And since we are at it, why do we define this function at all?
See above.
Is it
just a question of shortcuts and local caching of property access for
(slight...
EJB's - when to use Remote and/or local interfaces?
... servers? And use Local interfaces if your application is only going to reside on one server?
4 Answers
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Suppressing “is never used” and “is never assigned to” warnings in C#
...gma warning restore 0649
To find such warning numbers yourself (ie. how did I know to use 0169 and 0649), you do this:
Compile the code as normal, this will add some warnings to your error list in Visual Studio
Switch to the Output window, and the Build output, and hunt for the same warnings
Cop...
How is Math.Pow() implemented in .NET Framework?
... for calculating a b (say a = 2 and b = 50 ). To start things up, I decided to take a look at the implementation of Math.Pow() function. But in .NET Reflector , all I found was this:
...
When and why would you seal a class?
...security class's definition? Even if the answer would be "yes", this would ideally be a compiler option i.e. "generate optimized code for all non-sealed classes", rather than having us developers to alter code base.
– RayLuo
May 2 '17 at 21:15
...
Is there YAML syntax for sharing part of a list or map?
...o merge into a single mapping. Additionally, you can still explicitly override values, or add more that weren't present in the merge list.
It's important to note that it works with mappings, not sequences as your first example. This makes sense when you think about it, and your example looks like i...
Optimal settings for exporting SVGs for the web from Illustrator?
...SVG Viewer
Adobe SVG Viewer is a browser plugin from times when browsers did not support SVG natively. I don't know what it does, but it is irrelevant, do not check this.
Include slicing data
This adds metadata bloat to your SVG file, unless you plan on opening your SVG file later in Illustrator ...
Haskell: Lists, Arrays, Vectors, Sequences
...
work wonderfully. Infinite data structures rock.
Lists in Haskell provide an interface much like iterators in imperative languages (because of laziness). So, it makes sense that they are widely used.
On the other hand
The first problem with lists is that to index into them (!!) takes ϴ(k)...