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What does the @ symbol before a variable name mean in C#? [duplicate]
...name is recorded in the assembly as "class", vs. with an underscore it is "_class". Thus, if another .NET language doesn't define "class" as a reserved word, they could use the name just "class".
– P Daddy
Jan 9 '09 at 20:23
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How do you sign a Certificate Signing Request with your Certification Authority?
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[ ca ]
default_ca = CA_default # The default ca section
[ CA_default ]
default_days = 1000 # How long to certify for
default_crl_days = 30 # How long before next CRL
default_md = sha256 # Use pub...
Replace comma with newline in sed on MacOS?
...line, e.g.
echo "a,b" | sed -e $'s/,/\\\n/g'
Note this will not work on all shells, but will work on the most common ones.
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Scala: Abstract types vs generics
... Sommers (May 18, 2009)
Update (October2009): what follows below has actually been illustrated in this new article by Bill Venners:
Abstract Type Members versus Generic Type Parameters in Scala (see summary at the end)
(Here is the relevant extract of the first interview, May 2009, emphasis min...
How do I get IntelliJ IDEA to display directories?
...lliJ IDEA for JavaScript editing, and I like it so far, but I'm having a small problem with a new project.
15 Answers
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YYYY-MM-DD format date in shell script
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$(date +%F_%H-%M-%S)
can be used to remove colons (:) in between
output
2018-06-20_09-55-58
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String difference in Bash
...e is some difference between the two strings?
– alpha_989
Aug 10 '17 at 15:28
@alpha_989 , here's your answer: $ diff ...
构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...NOOP)
c、server以及存储引擎级别（连接管理、网络管理、table管理、日志）
包括cache/buffer、Connection、IO
d、应用级别（比如索引的考虑，schema的优化适当冗余；优化sql查询导致的CPU问题和内存问题，减少锁的范围，减少回表扫描...
Is there a macro recorder for Eclipse? [closed]
...nd it works great. In order to make it work, then the file PracticallyMacro_0.4.9.jar needs to be put in the eclipse/downloads/plugins directory (create the plugins directory if it doesn't exist). You can edit macros by going to Windows/Preferences/Practically Macro Options and you can run the macro...
Is there a better way to do optional function parameters in JavaScript? [duplicate]
... Well, you aren't talking about optional parameters - you really are passing a parameter, so this solution doesn't apply to your case. NaN doesn't mean "undefined" - it means you've passing a number but its value is NaN. See stackoverflow.com/questions/3215120/… for more
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