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How to select a CRAN mirror in R
...Just Works(tm), in all cases, including on headless systems (servers, IoT, etc.). Thanks, Dirk.
– Jesse Adelman
Oct 7 '18 at 22:45
4
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What are “Groovy” and “Grails” and what kinds of applications are built using them?
...us the power of the JVM (for garbage collection, speed via JIT compilation etc.) and the conciseness of Groovy. The learning curve for a Java programmer to pick up Groovy is supposed to be pretty small (thus leveraging off the huge number of available Java programmers).
It's a very different way of...
Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...HandlerSocket的潜力。
注：apt包管理下的配置文件一般是/etc/mysql/my.cnf，否则一般是/etc/my.cnf
最后登陆MySQL并激活HandlerSocket插件：
mysql> INSTALL PLUGIN handlersocket soname 'handlersocket.so';
重启一下MySQL服务，如果没有问题，就能在MySQL里...
Reserved keywords in JavaScript
What JavaScript keywords (function names, variables, etc) are reserved?
8 Answers
8
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Open and write data to text file using Bash?
... knowing exactly what to do with this file. How to save it, how to run it, etc.
– Danny
Sep 22 '16 at 5:52
16
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Can I have multiple :before pseudo-elements for the same element?
... position: absolute;
content: "";
/* more styles: width, height, etc */
}
.circle:after {
position: absolute;
content: "";
/* more styles: width, height, etc */
}
.circle span {
/* not relative/absolute/fixed */
}
.circle span:before {
position: absolute;
content...
Why does jQuery or a DOM method such as getElementById not find the element?
...'t (e.g. add the http: or https: scheme at the beginning, adjust the path, etc.)
Listening to the load/DOMContentLoaded events is exactly what jQuery is doing with .ready() [docs]. All your jQuery code that affects DOM element should be inside that event handler.
In fact, the jQuery tutorial expl...
Java Timer vs ExecutorService?
...oss other systems in a cluster and do things like one-off batch execution, etc...
Just look at what each offers to decide.
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How to replace multiple strings in a file using PowerShell
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Assuming you can only have one 'something1' or 'something2', etc. per line, you can use a lookup table:
$lookupTable = @{
'something1' = 'something1aa'
'something2' = 'something2bb'
'something3' = 'something3cc'
'something4' = 'something4dd'
'something5' = 'somethi...
What does “./” (dot slash) refer to in terms of an HTML file path location?
...der and ONLY the current folder. So if there is some kind of tool/compiler/etc that searches for the file, then './file' will search ONLY in current folder, whereas 'file' will search wherever the tool is configured to search (e.g. root, current folder, etc.)
– Marcel Toth
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