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BigDecimal - to use new or valueOf
...the primitive wrappers (Integer, Byte, ...) and String are treated: object identity should not matter to your code, only the value should matter.
– Joachim Sauer
Aug 25 '11 at 8:21
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Placement of the ng-app directive (html vs body)
...e discovered this while working on the app that was heavily relying on jqGrid and Dojo.
When we added ng-app to the head tag it blew up the site, but when we used a wrapper we could use Angular with no problems.
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Load and execute external js file in node.js with access to local variables?
...o a require('./yourfile.js');
Declare all the variables that you want outside access as global variables.
So instead of
var a = "hello" it will be
GLOBAL.a="hello" or just
a = "hello"
This is obviously bad. You don't want to be polluting the global scope.
Instead the suggest method is to export...
Case in Select Statement
... have the SalariedFlag set to 1 are returned in order by the BusinessEntityID in descending order. Employees that have the SalariedFlag set to 0 are returned in order by the BusinessEntityID in ascending order. In the second example, the result set is ordered by the column TerritoryName when the col...
How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
...you working with other developers who have different tab settings in their IDE?
UPDATE: In Visual Studio 2017 and onward, this is a stand-alone extension named "Fix Mixed Tabs" that can be disabled or uninstalled from "Extensions and Updates" window (Tools > Extensions and Updates).
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The type 'string' must be a non-nullable type in order to use it as parameter T in the generic type
... the T? C# syntactic sugar with non-nullable value types such as int and Guid.
In particular, as string is a reference type, an expression of type string can already be null:
string lookMaNoText = null;
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How can I convert immutable.Map to mutable.Map in Scala?
...liased imports, but bear in mind that sacrificing immutability is very non-idiomatic for Scala, not exactly the sort of thing I'd enourage by making it look even easier... Out of curiosity, how else could you propose doing it more cleanly, if not via a copy?
– Kevin Wright
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What are all the possible values for HTTP “Content-Type” header?
I have to validate the Content-Type header value before passing it to an HTTP request.
4 Answers
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Difference between Array and List in scala
...hich fast random access is important.
Mutable Structures
ListBuffer provides a constant-time conversion to a List which is reason alone to use ListBuffer if such later conversion is required.
A scala Array should be implemented on the JVM by a Java array, and hence an Array[Int] may be much more...
Entity Framework: table without primary key
...ll the same. Working around the EF's need to have a PK on tables is a bad idea from the standpoint of manageability, data integrity, and performance.
Some have commented that they do not have the ability to fix the underlying data model because they're mapping to a third-party application. That i...