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Printing object properties in Powershell
...essRightType, AccessRuleType,...
...
Use ConvertTo-Json for depth and readable "serialization"
I do not necessary recommend saving objects using JSON (use Export-Clixml instead).
However, you can get a more or less readable output from ConvertTo-Json, which also allows you to specify depth.
N...
BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...、AIO
与NIO不同，当进行读写操作时，只须直接调用API的read或write方法即可。这两种方法均为异步的，对于读操作而言，当有流可读取时，操作系统会将可读的流传入read方法的缓冲区，并通知应用程序；对于写操作而言，当操作...
Convert data.frame column format from character to factor
...hange all character variables in your data.frame to factors after you've already loaded your data, you can do it like this, to a data.frame called dat:
character_vars <- lapply(dat, class) == "character"
dat[, character_vars] <- lapply(dat[, character_vars], as.factor)
This creates a vect...
How do I write unit tests in PHP? [closed]
I've read everywhere about how great they are, but for some reason I can't seem to figure out how exactly I'm supposed to test something. Could someone perhaps post a piece of example code and how they would test it? If it's not too much trouble :)
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What is the difference between const_iterator and non-const iterator in the C++ STL?
...d to modify the container with them), to better document your intention of reading without modifying.
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What is the correct file extension for GLSL shaders? [closed]
...3Dlabs. It's listed as an SDK tool on both opengl.org and khronos.org. The README lists the file extensions it expects for shader files: .vert (vertex), .frag (fragment), .tesc (tessellation control), .tese (tessellation evaluation), .geom (geometry), .comp (compute).
– Tachyon...
Instance attribute attribute_name defined outside __init__
...
The idea behind this message is for the sake of readability. We expect to find all the attributes an instance may have by reading its __init__ method.
You may still want to split initialization into other methods though. In such case, you can simply assign attributes to N...
What is the C# Using block and why should I use it? [duplicate]
...w SomeDisposableType()) {
OperateOnType(u);
}
The second is easier to read and maintain.
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How do I exit the Vim editor?
...:quit!)
:wq to write and quit
:wq! to write and quit even if file has only read permission (if file does not have write permission: force write)
:x to write and quit (similar to :wq, but only write if there are changes)
:exit to write and exit (same as :x)
:qa to quit all (short for :quitall)
:cq t...
How to decide when to use Node.js?
...e something like Node.js, the server has no need of maintaining separate threads for each open connection.
This means you can create a browser-based chat application in Node.js that takes almost no system resources to serve a great many clients. Any time you want to do this sort of long-polling, ...