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What is the standard naming convention for html/css ids and classes?
... Use the one that you think is best - the one that looks nicest/easiest to read for you, as well as easiest to type because you'll be using it a lot. For example, if you've got your underscore key on the underside of the keyboard (unlikely, but entirely possible), then stick to hyphens. Just go with...
Using tags in the with other HTML
...
As others have already mentioned, HTML 4 requires the <style> tag to be placed in the <head> section (even though most browsers allow <style> tags within the body).
However, HTML 5 includes the scoped attribute (see update ...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...e.
If you're on 9.5 and don't need to be backward-compatible you can stop reading now.
9.4 and older:
PostgreSQL doesn't have any built-in UPSERT (or MERGE) facility, and doing it efficiently in the face of concurrent use is very difficult.
This article discusses the problem in useful detail.
In g...
How to cancel a Task in await?
...
Read up on Cancellation (which was introduced in .NET 4.0 and is largely unchanged since then) and the Task-Based Asynchronous Pattern, which provides guidelines on how to use CancellationToken with async methods.
To summari...
Are memory leaks ever ok? [closed]
...d whether or not it is running constantly.
If I have a quick program that reads a small amount of data makes a calculation and exits, a small memory leak will never be noticed. Because the program is not running for very long and only uses a small amount of memory, the leak will be small and freed ...
How to avoid explicit 'self' in Python?
... functions require no knowledge of the actual class
# how hard are they to read and realize that "members" are used?
B.__init__ = B_init
B.__str__ = B_str
print B()
# <The answer is 42.>
Remember, both of these examples are extreme and you won't see them every day, nor am I suggesting you ...
Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...ite("too young, too naive!\n")
else
local age = io.read()
print("Your age is "..age)
end复制代码
上面的语句不但展示了if-else语句，也展示了
1）“～=”是不等于，而不是!=
2）io库的分别从stdin和stdout读写的read...
How do I add a library project to Android Studio?
...consider Dependencies, Android Libraries and Multi-project setup necessary reading. Please take a few minutes to do so.
Particularly, in the case of a non-jar library project, read the following snippet from above source:
Gradle projects can also depend on other gradle projects by using a multi...
Rich vs Anemic Domain Model [closed]
...n, and ultimately – to get rid of code duplication.
UPDATE
I recently read this article where the author advocates of following a sort of hybrid approach - domain objects can answer various questions based solely on their state (which in the case of totally anemic models would probably be done ...
C# 'is' operator performance
...tions, the numbers still bounce around +/- 50 or so millisec so I wouldn't read too much into the minor differences.
It was interesting to see that x64 created faster but executed as/is slower than x86
x64 Release Mode:
Stopwatch:
As: 561ms
Is: 597ms
Base property: 539ms
Base field: 555ms
Ba...