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R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?
... In other languages += can be applied to immutable types (like strings in .net). The operation simply creates a new object and assigns the given variable to that new object. Immutability is maintained and the variable is updated.
– SFun28
Apr 21 '11 at 13:35
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Ruby, !! operator (a/k/a the double-bang) [duplicate]
...only false-y values are false and nil. Everything else is truth-y: phrogz.net/ProgrammingRuby/language.html#truthvalues I've edited my answer to make this more clear.
– pkaeding
Aug 15 '12 at 23:17
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How to write into a file in PHP?
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fwrite($fp, 'Cats chase');
fwrite($fp, 'mice');
fclose($fp);
http://php.net/manual/en/function.fwrite.php
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How do you Force Garbage Collection from the Shell?
...t be due to the -XX:+DisableExplicitGC VM argument. See: mail.openjdk.java.net/pipermail/serviceability-dev/2017-August/…
– Eyal Roth
Aug 28 '18 at 15:03
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What's a good hex editor/viewer for the Mac? [closed]
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On http://www.synalysis.net/ you can get the hex editor I'm developing for the Mac - Synalyze It!. It costs 7 € / 40 € (Pro version) and offers some extra features like histogram, incremental search, support of many text encodings and interactiv...
Why is AJAX returning HTTP status code 0?
... stopped the debugging session, any request that tried to connect will get net::ERR_CONNECTION_REFUSED and the status code will be zero. That makes sense, since you can't have a status code if you can't connect to the server that's supposed to be providing one.
– Triynko
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Linux command to print directory structure in the form of a tree
...r
|-- cwd -> /proc
|-- fd
| `-- 3 -> /proc/15589/fd
|-- fdinfo
|-- net
| |-- dev_snmp6
| |-- netfilter
| |-- rpc
| | |-- auth.rpcsec.context
| | |-- auth.rpcsec.init
| | |-- auth.unix.gid
| | |-- auth.unix.ip
| | |-- nfs4.idtoname
| | |-- nfs4.nametoid
| | |...
Can Android do peer-to-peer ad-hoc networking?
...ould like to have one phone broadcast a message, and have all peers in the network receive the broadcast, without having a server. I would like to use wifi since bluetooth range is more limited.
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Java null check why use == instead of .equals()
... at the source code, .equals() basically does an == check. hg.openjdk.java.net/jdk7/jdk7/jdk/file/tip/src/share/classes/…
– Ayush
Jun 19 at 9:25
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NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...ysinablog.com/index.php?op=ViewArticle&articleId=1910084
http://blog.csdn.net/lee353086/article/details/463491571701|1780|1781|1782|1784NSIS 学习笔记