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Generate a random double in a range

... many double values in the desired range, if that range is larger than 0.0-1.0. If the desired range contains a larger number of values than the range 0.0-1.0 there will not be a value for each of them and they will never get generated. (By the pigeonhole principle!). Because of this Tunaki's soluti...
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How do we control web page caching, across all browsers?

...itly required by some clients next to Expires). The Pragma is per the HTTP 1.0 spec for prehistoric clients. The Expires is per the HTTP 1.0 and 1.1 specs for clients and proxies. In HTTP 1.1, the Cache-Control takes precedence over Expires, so it's after all for HTTP 1.0 proxies only. If you don't...
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Fade In Fade Out Android Animation in Java

... I know that this already has been answered but..... <?xml version="1.0" encoding="utf-8"?> <alpha xmlns:android="http://schemas.android.com/apk/res/android" android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="1000" android:repeatCount="infinite" ...
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The executable gets signed with invalid entitlements in Xcode

...ord, this is still a problem and restarting is still the fix (I'm using v7.3.1). – Eric Soyke Aug 3 '16 at 14:34 3 ...
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Apache两种工作模式区别及配置切换 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...pache两种工作模式区别及配置切换1、Redhat Linux下查看apache本号在Apache安装目录bin下,使用以下命令查看即可。使用命令:. httpd -v示例:2、查看Apache当前工作模...1、Redhat Linux下查看apache本号 在Apache安装目录bin下,使用以下...
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What is the smallest possible valid PDF?

...esting problem. Taking it by the book, you can start off with this: %PDF-1.0 1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj 2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj 3 0 obj<</Type/Page/MediaBox[0 0 3 3]>>endobj xref 0 4 0000000000 65535 f 0000000010 00000 n ...
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Bootstrap: Position of dropdown menu relative to navbar item

...he classes that need to be applied changed with the release of Bootstrap 3.1.0 and again with the release of Bootstrap 4. If one of the below solutions doesn't seem to be working double check the version number of Bootstrap that you're importing and try a different one. Bootstrap 3 Before v3.1.0 ...
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Add a UIView above all, even the navigation bar

....keyWindow!.frame UIApplication.shared.keyWindow!.addSubview(view) Swift 3.1 : let view = UIView() view.frame = UIApplication.sharedApplication().keyWindow!.frame UIApplication.sharedApplication().keyWindow!.addSubview(view) ...
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Int or Number DataType for DataAnnotation validation attribute

... ASP.NET Core 3.1 This is my implementation of the feature, it works on server side as well as with jquery validation unobtrusive with a custom error message just like any other attribute: The attribute: [AttributeUsage(AttributeTargets....
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Actionbar notification count icon (badge) like Google has

...e drawable (background square) - shape_notification.xml <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <stroke android:color="#22000000" android:width="2dp"/> <corners android:radius...