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When does static class initialization happen?
...extual order as defined in the class.
Consider the example:
public class Test {
static String sayHello() {
return a;
}
static String b = sayHello(); // a static method is called to assign value to b.
// but its a has not been initialized yet.
...
Wrapping StopWatch timing with a delegate or lambda?
...ree that "foreach" with Enumerable.Range looks a bit more "modern", but my tests show that it's about four times slower than a "for" loop over a large count. YMMV.
– Matt Hamilton
Oct 25 '08 at 23:16
...
How to mkdir only if a directory does not already exist?
...ady exist, in which case I do not want to do anything. So I want to either test to see that the directory does not exist, or suppress the "File exists" error that mkdir throws when it tries to create an existing directory.
...
Html5 data-* with asp.net mvc TextboxFor html attributes
...
You could use underscore (_) and the helper is intelligent enough to do the rest:
@Html.TextBoxFor(
model => model.Country.CountryName,
new { data_url = Url.Action("CountryContains", "Geo") }
)
And for those who want to achieve the same...
What is the difference between SQL, PL-SQL and T-SQL?
...d the like. These additions make T-SQL comply with the Turing completeness test, a test that determines the universality of a computing language. SQL is not Turing complete and is very limited in the scope of what it can do.
Another significant difference between T-SQL and SQL is the changes done t...
Export Data from mysql Workbench 6.0
...he begin of this line to comment it out
Save file and restart Workbench.
Tested on Windows 7 x64, MySQL 5.6.27 (MyISAM) & Workbench 6.3.5 x64.
Tested on OSX Yosemite 10.10.4, MySQL 5.5.27 (MyISAM), Workbench 6.3.5 build 201 CE x64.
...
Why does Node.js' fs.readFile() return a buffer instead of string?
I'm trying to read the content of test.txt (which is on the same folder of the Javascript source) and display it using this code:
...
How to find third or nth maximum salary from salary table?
...
Use ROW_NUMBER(if you want a single) or DENSE_RANK(for all related rows):
WITH CTE AS
(
SELECT EmpID, EmpName, EmpSalary,
RN = ROW_NUMBER() OVER (ORDER BY EmpSalary DESC)
FROM dbo.Salary
)
SELECT EmpID, EmpName, EmpSalary
FROM CTE
WHERE RN = @NthRow
...
What is the difference between a map and a dictionary?
...lements that can support the insertion and deletion of elements as well as test for membership
For example, we have a set of elements { A, B, C, D... } that we've been able to insert and could start deleting, and we're able to query "is C present?".
The Computing Science notion of map though is b...
How do I convert a pandas Series or index to a Numpy array? [duplicate]
... edited Nov 13 '19 at 21:13
Mr_and_Mrs_D
25.3k2929 gold badges149149 silver badges304304 bronze badges
answered Jun 21 '13 at 18:51
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