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Get first key in a (possibly) associative array?
...opy is reused while running the benchmark since avoidance of array copying enhances performance only within this test.
– Jarda
Aug 11 '17 at 6:34
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How do I generate a random int number?
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Excellent answer. There are some good "enhancements" to Random out there to make your random-ness more robust: ericlippert.com/2019/02/04/fixing-random-part-2 and codeblog.jonskeet.uk/2009/11/04/revisiting-randomness .
– Jesse C. Slicer
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Is it possible to insert multiple rows at a time in an SQLite database?
...nked to the release notes for the version adding the feature, which state "Enhance the INSERT syntax to allow multiple rows to be inserted via the VALUES clause."
– Brian Campbell
Oct 15 '12 at 18:58
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Break or return from Java 8 stream forEach?
...ng external iteration over an Iterable we use break or return from enhanced for-each loop as:
13 Answers
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Generate .pem file used to set up Apple Push Notifications
...pple. Both the public and private keys are necessary to export the Privacy Enhanced Mail (PEM) file.
Chances are the reason you can't export a working PEM from the certificate provided by the client is that you do not have the private key. The certificate contains the public key, while the private...
iPhone 5 CSS media query
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I would go progressive enhancement and mobile first. That is beginning with mobile and building up using min-device-width.
– primavera133
Jan 18 '13 at 14:42
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解决Scrapy警告:You do not have a working installation of the service_i...
...pi/service_identity）来安装。
我们可以直接通过命令行下载：
pip install service_identity-17.0.0-py2.py3-none-any.whl
如果上面的方法没能解决问题，很大可能是有些包的版本不一样导致的，这个时候我们可以用下面这行代码来强制...
VS 2015 Preview版已经发布，支持Android开发 - IT产品资讯 - 清泛网 - 专注IT技能提升
...udio 2015迈出了跨平台支持的最新一步，其预览版已经放出下载。VS 2015将支持 Clang 编辑器和LLVM框架，支持为Android 及未来的iOS开发应用。使用 Google Android SDK的开发者都知道，Google的Android 模拟器非常慢，微软开发了自己的Android模...
解决Scrapy警告:You do not have a working installation of the service_i...
...pi/service_identity）来安装。
我们可以直接通过命令行下载：
pip install service_identity-17.0.0-py2.py3-none-any.whl
如果上面的方法没能解决问题，很大可能是有些包的版本不一样导致的，这个时候我们可以用下面这行代码来强制...
解决Scrapy警告:You do not have a working installation of the service_i...
...pi/service_identity）来安装。
我们可以直接通过命令行下载：
pip install service_identity-17.0.0-py2.py3-none-any.whl
如果上面的方法没能解决问题，很大可能是有些包的版本不一样导致的，这个时候我们可以用下面这行代码来强制...