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Foreign keys in mongo?
...
> db.foo.find()
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group" : "phones" }
{ "_id" : ObjectId("4df6540fe90592692ccc9941"), "group" : "phones" }
>db.foo.find({'_id':ObjectId("4df6539ae90592692ccc9940")})
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group" : "ph...
How does Bluebird's util.toFastProperties function make an object's properties “fast”?
... an instance
function ic() { return typeof receiver.foo; } // perform access
ic();
ic();
return o;
eval("o" + o); // ensure no dead code elimination
}
Sans one or two small optimizations - all the below is still valid.
Let's first discuss what it does and why that's faster and ...
What's an object file in C?
...ject file.
If you have an a.c source file, to create its object file with GCC you should run:
gcc a.c -c
The full process would be: preprocessor (cpp) would run over a.c. Its output (still source) will feed into the compiler (cc1). Its output (assembly) will feed into the assembler (as), which will ...
What's the difference between size_t and int in C++?
...n this here Linux /usr/include/stdlib.h gets the definition from /usr/lib/gcc/x86_64-redhat-linux/5.3.1/include/stddef.h and therein it defaults to long unsigned int unless some other header file says otherwise.
– David Tonhofer
Jan 4 '16 at 19:38
...
如何抓住痛点做出让用户尖叫的产品 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...察觉的情况下，体验到产品的优化改进。比如在微信（iOS版，Android版没有试用，不是很确定，理论上体验是会一致的）中有这样一个功能，当你做了手机屏幕截图的操作后，打开微信的任一聊天窗口，选择“+”号发送其他内容...
为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
WinDbg基础资料（日本語） - IT优秀资料 - 清泛网 - 专注C/C++及内核技术
...gerで取得したCrash Dumpは64bit.
２．上記の環境で、64bit版のWinDbgはインストールできない(出来るとしても、手続きが必要？)
３．取得したCrash Dumpは、32bitの開発機で分析できない。64bitのマシンを用意する必要がある。...
Why does find -exec mv {} ./target/ + not work?
....
find -exec command {} \;
For each result, command {} is executed. All occurences of {} are replaced by the filename. ; is prefixed with a slash to prevent the shell from interpreting it.
find -exec command {} +
Each result is appended to command and executed afterwards. Taking the command leng...
Line-breaking widget layout for Android
...time and "wrapping" to the next line as needed.
*
* Code licensed under CC-by-SA
*
* @author Henrik Gustafsson
* @see http://stackoverflow.com/questions/549451/line-breaking-widget-layout-for-android
* @license http://creativecommons.org/licenses/by-sa/2.5/
*
*/
public class PredicateLayo...
C++11 rvalues and move semantics confusion (return statement)
...
@Deduplicator: You are correct. I was not speaking as accurately as I intended. I meant that multiple return statements do not forbid the compiler from RVO (even though it does make it impossible to implement), and therefore the return expression is still considered an rvalue.
...