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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 ...
Is it valid to replace http:// with // in a ?
...ocol, calling it "protocol relative" makes more sense. I've never heard of ftp or http being called "schemes"...
– Cerin
Oct 30 '13 at 15:15
...
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 ...
Encoding URL query parameters in Java
...A ":" should be encoded, as it's a separator character. i.e. http://foo or ftp://bar. The fact that a particular browser can handle it when it's not encoded doesn't make it correct. You should encode them.
As a matter of good practice, be sure to use the method that takes a character encoding param...
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
...
PHP编译安装时常见错误解决办法，php编译常见错误 - 更多技术 - 清泛网 - ...
...rror: mcrypt.h not found. Please reinstall libmcrypt.
代码如下:
wget ftp://mcrypt.hellug.gr/pub/crypto/mcrypt/libmcrypt/libmcrypt-2.5.7.tar.gz
tar zxf libmcrypt-2.5.7.tar.gz
cd libmcrypt-2.5.7
./configure
make && make install
added 20141003：
Cannot find imap
代码如下:
ln -s /us...
20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...、校验文件系统。它监控的服务包括 Apache、MYSQL、Mail、FTP、Nginx 等等。系统状态是可以从命令行或者自己的网络接口来查看。
12. NetHogs — 监视每个进程的网络带宽
NetHogs 是一个开源的漂亮的小程序（类似于 Linux 上面的 top 命...
My Git repository is in the wrong root directory. Can I move it? (../ instead of ./)
...t delete the .git subdirectory and uninstall Git from our system? Using an ftp-server instead of vcs is probably the simplest thing after all!
– Gherman
Dec 8 '15 at 12:09
2
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Is it possible to ping a server from Javascript?
...
}
}
This works on all types of servers that I've tested (web servers, ftp servers, and game servers). It also works with ports. If anyone encounters a use case that fails, please post in the comments and I will update my answer.
Update: Previous link has been removed. If anyone finds or implem...