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Fastest way to serialize and deserialize .NET objects
...omprehansive comparison between diffreent formats made by me in this post-
https://maxondev.com/serialization-performance-comparison-c-net-formats-frameworks-xmldatacontractserializer-xmlserializer-binaryformatter-json-newtonsoft-servicestack-text/
Just one sample from the post-
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How to track untracked content?
...hen I re-added the directories with a git add . from above
Reference URL https://danielmiessler.com/blog/git-modified-untracked/#gs.W0C7X6U
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What is SYSNAME data type in SQL Server?
...mation about sysname allowing or disallowing NULL values can be found here https://stackoverflow.com/a/52290792/300863
Just because it is the default (to be NOT NULL) does not guarantee that it will be!
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How to convert a string to an integer in JavaScript?
...rs. So the winner is 'mul' :)
You can run it on your browser by this link
https://jsperf.com/js-cast-str-to-number/1
Update
I also test var x = ~~"1000"; - on Chrome and Safari is a little bit slower than var x = "1000"*1 (<1%), on Firefox is a little bit faster (<1%). I update above pict...
Difference between volatile and synchronized in Java
...zed with respect to memory visibility and instruction ordering (see http://www.cs.umd.edu/users/pugh/java/memoryModel/jsr-133-faq.html#volatile). For the purposes of visibility, each access to a volatile field acts like half a synchronization.
Under the new memory model, it is still true that v...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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# 这是一个自动打ipa的脚本，基于webfrogs的ipa-build书写：https://github.com/webfrogs/xcode_shell/blob/master/ipa-build
# 功能：自动为etao ios app打包，产出物为14个渠道的ipa包
# 特色：全自动打包，不需要输入任何参数
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Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
...hape2 and the tidyverse came plyr, with the daply function, as shown here: https://stackoverflow.com/a/7020101/210673
library(plyr)
daply(tmp, .(x, y), function(x) x$z)
## y
## x a b c
## x 1 2 3
## y 3 3 2
Using matrix indexing:
This is kinda old school but is a nice demonstration of m...
Overloading Macro on Number of Arguments
... ...
PS: __NARG__ is copied from Laurent Deniau & Roland Illig here: https://groups.google.com/group/comp.std.c/browse_thread/thread/77ee8c8f92e4a3fb/346fc464319b1ee5?pli=1
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Entity Framework rollback and remove bad migration
...SCRIPTION
This topic describes the Entity Framework Core commands. See https://docs.efproject.net for information on Entity Framework Core.
The following Entity Framework cmdlets are included.
Cmdlet Description
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How do I sort an observable collection?
...exity of the interface involved and its relatively poor documentation (see https://stackoverflow.com/a/5883947/33080).
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