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Windows: How to specify multiline command on command prompt?
...sort of dangerous answer for you.
Trying to use this with things that actually use piping, like say findstr is quite problematic. The same goes for dealing with elses. But if you just want a multi-line conditional command to execute directly from CMD and not via a batch file, this should do work we...
Map over object preserving keys
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With Underscore
Underscore provides a function _.mapObject to map the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapVa...
Why JSF calls getters multiple times
...e getter method behind the expression is executed everytime when the code calls ValueExpression#getValue().
This will normally be invoked one or two times per JSF request-response cycle, depending on whether the component is an input or output component (learn it here). However, this count can get ...
Programmer Puzzle: Encoding a chess board state throughout a game
..., 2 bishops, 1 queen and 1 king as illustrated here:
Positions are generally recorded as a letter for the column followed by the number for the row so White’s queen is at d1. Moves are most often stored in algebraic notation, which is unambiguous and generally only specifies the minimal informa...
Why is list initialization (using curly braces) better than the alternatives?
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Basically copying and pasting from Bjarne Stroustrup's "The C++ Programming Language 4th Edition":
List initialization does not allow narrowing (§iso.8.5.4). That is:
An integer cannot be converted to another integer that cann...
Java Generics (Wildcards)
...f bounded wildcards. An unbounded wildcard looks like <?>, and basically means <? extends Object>. It loosely means the generic can be any type. A bounded wildcard (<? extends T> or <? super T>) places a restriction on the type by saying that it either has to extend a spec...
ScalaTest in sbt: is there a way to run a single test without tags?
...ldcard, you could specify the full path com.example.specs.YourTestClass.)
All tests within that test class will be executed. Presumably you're most concerned with failing tests, so correct any failing implementations and then run:
test:testQuick
... which will only execute tests that failed. (Re...
Using C# to check if string contains a string in string array
...one of substrings from stringArray. If you want to ensure that it contains all the substrings, change Any to All:
if(stringArray.All(stringToCheck.Contains))
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How to check for valid email address? [duplicate]
...ere is no point. Even if you can verify that the email address is syntactically valid, you'll still need to check that it was not mistyped, and that it actually goes to the person you think it does. The only way to do that is to send them an email and have them click a link to verify.
Therefore, a ...
How do I concatenate two arrays in C#?
...ays. It seems the only functional purpose for using arrays is for Interop calls (Unmanaged C++).
– Levi Fuller
Oct 26 '15 at 22:40
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