大约有 13,914 项符合查询结果（耗时：0.0267秒） [XML]
Split value from one field to two
...nelutti
With that function:
DELIMITER $$
CREATE FUNCTION SPLIT_STR(
x VARCHAR(255),
delim VARCHAR(12),
pos INT
)
RETURNS VARCHAR(255) DETERMINISTIC
BEGIN
RETURN REPLACE(SUBSTRING(SUBSTRING_INDEX(x, delim, pos),
LENGTH(SUBSTRING_INDEX(x, delim, pos -1)) + 1),
delim, '');...
Mocking a class: Mock() or patch()?
...t;>> def create_instance():
... return MyClass()
...
>>> x = create_instance()
Created MyClass@4299548304
>>>
>>> @mock.patch('__main__.MyClass')
... def create_instance2(MyClass):
... MyClass.return_value = 'foo'
... return create_instance()
...
>>>...
setTimeout or setInterval?
...bit more than 1000ms (or a lot more if your function takes a long time to execute).
Although one might think that setInterval will execute exactly every 1000ms, it is important to note that setInterval will also delay, since JavaScript isn't a multi-threaded language, which means that - if there ar...
How to handle dependency injection in a WPF/MVVM application
... that it's a pleasure to work with. Everything is set up in code, the syntax is fairly straightforward and it has a good documentation (and plenty of answers on SO).
So basically it goes like this:
Create the view model, and take the IStorage interface as constructor parameter:
class UserControlV...
How to detect if a script is being sourced
I have a script where I do not want it to call exit if it's being sourced.
17 Answers
...
What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
...ur build process we'd have something like this:
/Resources/Combined.css?v=x.x.x.buildnumber
Since this changes with every new code push, the client's forced to grab a new version, just because of the querystring. Look at this page (at the time of this answer) for example:
<link ... href="htt...
Where to place AutoMapper.CreateMaps?
...that each "layer" (web, services, data) has a single file called AutoMapperXConfiguration.cs, with a single method called Configure(), where X is the layer.
The Configure() method then calls private methods for each area.
Here's an example of our web tier config:
public static class AutoMapperWeb...
Linux error while loading shared libraries: cannot open shared object file: No such file or director
Program is part of the Xenomai test suite, cross-compiled from Linux PC into Linux+Xenomai ARM toolchain.
18 Answers
...
Could someone explain the pros of deleting (or keeping) unused code?
...ve burden. By preserving
old redundant code that burden is increased. For example, merging changes in the main branch becomes harder because there is more code to work through and more possibility to make a mistake.
What happens over time is that more and more old unused code is added
to the codebas...
How to access cookies in AngularJS?
... I've seen references to both a service and a module for cookies, but no examples.
9 Answers
...