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What is the difference between is_a and instanceof?
...ut PHP versions >= 5.3.9 now accept an optional third boolean argument $allow_string (defaults to false) to allow comparisons of string class names instead:
class MyBaseClass {}
class MyExtendingClass extends MyBaseClass {}
// Original behavior, evaluates to false.
is_a(MyExtendingClass::class,...
install / uninstall APKs programmatically (PackageManager vs Intents)
My application installs other applications, and it needs to keep track of what applications it has installed. Of course, this could be achieved by simply keeping a list of installed applications. But this should not be necessary! It should be the responsibility of the PackageManager to maintain the ...
Efficient way to apply multiple filters to pandas DataFrame or Series
...s to apply several filters to a Pandas DataFrame or Series object. Essentially, I want to efficiently chain a bunch of filtering (comparison operations) together that are specified at run-time by the user.
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How do I remove all .pyc files from a project?
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You are not quoting {}. What would happen if accidentally word-split and deleted an intermediate path which happens to be called like a fragment of the path you found?
– Robottinosino
Apr 3 '13 at 2:58
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Why is GHC so large/big?
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It's a bit silly really. Every library that comes with GHC is provided in no less than 4 flavours:
static
dynamic
profiled
GHCi
The GHCi version is just the static version linked together in a single .o file. The other three versions all ...
How to configure Visual Studio to use Beyond Compare
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Note that for Beyond Compare 3, you should actually be using BComp.exe -- see scootersoftware.com/vbulletin/showthread.php?t=3461
– Joe
Jul 13 '11 at 15:28
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只有程序员能看懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...了飞机后你发现一个牌子上写着这个飞机用的是你的团队开发的Beta版软件，你会下飞机吗？” 九个软件工程师举了手。老师看着第十个问道：“你为什么愿意留在飞机上？”这人回答说：“如果是我的团队写的这个软件，飞机...
千万别惹程序员 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...常成熟了，无论是国内还是国外）。这张图片就如同“Web开发中应该知道的事”中说的一样——永远不要相信用户的输入。
插曲：我昨天把这张图片放到微博，结果，被转了几万次，上了热门转发的top list和一些社会热点和明...
ATL创建的ActiveX(COM组件)实现JS回调 - C/C++ - 清泛网 - 专注C/C++及内核技术
...任意获取网页元素，进行Invoke调用，详细请参见《ATL COM开发入门（二）（ActiveX/COM组件回调JS）》。
ATL ActiveX COM JS回调
Linux automake自动编译全攻略 - C/C++ - 清泛网 - 专注C/C++及内核技术
...kefile不熟悉的要好好学习一下），而且也灵活的多。使得开发者只需关心代码逻辑，不必过于关心项目的编译配置。
automake流程图示如下：
核心配置如下：
configure.in：
AC_INIT([test], [1.0.0], [bugreport.test.com])
#指定项目...