大约有 45,000 项符合查询结果（耗时：0.0774秒） [XML]
List comprehension vs. lambda + filter
...d myself having a basic filtering need: I have a list and I have to filter it by an attribute of the items.
14 Answers
...
What does the question mark operator mean in Ruby?
...
It is a code style convention; it indicates that a method returns a boolean value.
The question mark is a valid character at the end of a method name.
...
preferredStatusBarStyle isn't called
I followed this thread to override -preferredStatusBarStyle , but it isn't called.
Are there any options that I can change to enable it? (I'm using XIBs in my project.)
...
Stopping scripters from slamming your website
...president of Woot Workshop, the subsidiary of Woot that does the design, writes the product descriptions, podcasts, blog posts, and moderates the forums. I work with CSS/HTML and am only barely familiar with other technologies. I work closely with the developers and have talked through all of the an...
Undefined, unspecified and implementation-defined behavior
...ng to programmers coming from other languages (other languages try to hide it better). Basically, it is possible to write C++ programs that do not behave in a predictable way, even though many C++ compilers will not report any errors in the program!
Let's look at a classic example:
#include <ios...
Detect if Android device has Internet connection
...o network available!");
}
return false;
}
Of course you can substitute the http://www.google.com URL for any other server you want to connect to, or a server you know has a good uptime.
As Tony Cho also pointed out in this comment below, make sure you don't run this code on the main threa...
Flex-box: Align last row to grid
I have a simple flex-box layout with a container like:
27 Answers
27
...
Message Queue vs. Web Services? [closed]
Under what conditions would one favor apps talking via a message queue instead of via web services (I just mean XML or JSON or YAML or whatever over HTTP here, not any particular type)?
...
Is it possible to get CMake to build both a static and shared version of the same library?
...
Yes, it's moderately easy. Just use two "add_library" commands:
add_library(MyLib SHARED source1.c source2.c)
add_library(MyLibStatic STATIC source1.c source2.c)
Even if you have many source files, you would place the list of ...
Finding last occurrence of substring in string, replacing that
...format, and I want to find the last "." character in each one, and replace it with ". - ". I've tried using rfind, but I can't seem to utilize it properly to do this.
...