大约有 15,461 项符合查询结果（耗时：0.0222秒） [XML]
Try-finally block prevents StackOverflowError
... @assylias: if there's not enough space, you will return from the latest foo() invocation, and invoke foo() in the finally block of your current foo() invocation.
– ninjalj
Sep 15 '12 at 16:10
...
Biggest advantage to using ASP.Net MVC vs web forms
...ver the rendered HTML.
Provides clean separation of concerns(SoC).
Enables Test Driven Development (TDD).
Easy integration with JavaScript frameworks.
Following the design of stateless nature of the web.
RESTful urls that enables SEO.
No ViewState and PostBack events
The main advantage of ASP.net ...
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.
...
Measuring code execution time
...want to know how much time a procedure/function/order takes to finish, for testing purposes.
7 Answers
...
Avoid trailing zeroes in printf()
...ld widths, then format the number using a format string based on that. The test harness main() shows this in action:
40.00000000000000000000 -> 40.000
359.01335000000000263753 -> 359.013
-359.00999000000001615263 -> -359.010
359.00999999999999090505 -> 359.010
3.01357000000000008...
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...
Rails layouts per action?
...trollers in many levels. I have used method before, but wasn't thinking of testing that when I had the problem now, thanks again.
– 244an
Oct 1 '15 at 15:07
...
How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...
Note this is not standard SQL. An example from the manual:
CREATE TABLE test (
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
data VARCHAR(64) DEFAULT NULL,
ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (id)
);
mysql> REPLACE INTO test VALUES (1, '...
SQL to determine minimum sequential days of access?
...
Truncate the CreateionDate down to days in all these tests (on the right side only or you kill SARG) using DATEADD(dd, DATEDIFF(dd, 0, CreationDate), 0) This works by subtracting the supplied date from zero--which Microsoft SQL Server interprets as 1900-01-01 00:00:00 and gives...
What's the difference between the Dependency Injection and Service Locator patterns?
...One important result of this is that the DI example is much easier to unit test -- because you can pass it mock implementations of its dependent objects. You could combine the two -- and inject the service locator (or a factory), if you wanted.
...