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Pointers vs. values in parameters and return values
... value receivers. As something nearer an upper bound, bytes.Replace takes 10 words' worth of args (three slices and an int). You can find situations where copying even large structs turns out a performance win, but the rule of thumb is not to.
For slices, you don't need to pass a pointer to change...
String's Maximum length in Java - calling length() method
...way the internal data representation is implemented for Strings), Chapter 10: Arrays of The Java Language Specification, Java SE 7 Edition says the following:
The variables contained in an array
have no names; instead they are
referenced by array access expressions
that use nonnegative int...
Base64Util 拓展：支持图像框、画布、文件、文本字符串、图像精灵base64编...
...系方式： 不需要回复的可留空~ 意见反馈（300字以内）： 给个鼓励也行呐~o~ 提供截图（仅截取当前可视区域） delete edit 高亮或隐藏信息 ...
Resource interpreted as Document but transferred with MIME type application/zip
With Chrome 12.0.742.112, if I redirect with the following headers:
18 Answers
18
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C# switch statement limitations - why?
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100
This is my original post, which sparked some debate... because it is wrong:
The switch stat...
How to do what head, tail, more, less, sed do in Powershell? [closed]
...ing a text file. You can then filter further:
gc log.txt | select -first 10 # head
gc -TotalCount 10 log.txt # also head
gc log.txt | select -last 10 # tail
gc -Tail 10 log.txt # also tail (since PSv3), also much faster than above option
gc log.txt | more # or less if you...
How to create a bash script to check the SSH connection?
...h -q user@downhost exit
$ echo $?
255
$ ssh -q user@uphost exit
$ echo $?
0
EDIT: Another approach would be to use nmap (you won't need to have keys or login-stuff):
$ a=`nmap uphost -PN -p ssh | grep open`
$ b=`nmap downhost -PN -p ssh | grep open`
$ echo $a
22/tcp open ssh
$ echo $b
(empty st...
How do you create a read-only user in PostgreSQL?
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670
Grant usage/select to a single table
If you only grant CONNECT to a database, the user can conn...
Safely turning a JSON string into an object
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1990
JSON.parse(jsonString) is a pure JavaScript approach so long as you can guarantee a reasonably m...
Delete files older than 3 months old in a directory using .NET
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answered Feb 8 '10 at 14:57
Steve DannerSteve Danner
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