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Best way to detect Mac OS X or Windows computers with JavaScript or jQuery

So I'm trying to move a "close" button to the left side when the user is on Mac and the right side when the user is on PC. Now I'm doing it by examining the user agent, but it can be too easily spoofed for reliable OS detection. Is there a surefire way to detect whether the OS on which the browser i...
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c++提取复数的实部和虚部 - C/C++ - 清泛网 - 专注C/C++及内核技术

c++提取复数的实部和虚部plural_real_part_imaginary_part输入一个复数,即可输出它的实部和虚部。 #include<iostream> #include<string> using namespace std; typedef float REAL; #define MAX_BUF_LEN 256 typedef struct COMPLEX { REAL r; // 实部 REAL i...
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How can I combine hashes in Perl?

What is the best way to combine both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible. ...
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Android onCreate or onStartCommand for starting service

Usually when I create an Android service I implement the onCreate method, but in my last project this does not work. I tried implementing onStartCommand , and this seems to work. ...
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HMAC-SHA1 in bash

Is there a bash script to generate a HMAC-SHA1 hash? 4 Answers 4 ...
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How to read lines of a file in Ruby

...ode to read lines from a file. But when reading a file , the contents are all in one line: 8 Answers ...
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Convert a character digit to the corresponding integer in C

Is there a way to convert a character to an integer in C? 15 Answers 15 ...
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What is the difference between required and ng-required?

What is the difference between required and ng-required (form validation)? 3 Answers ...
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How do I ignore the initial load when watching model changes in AngularJS?

I have a web page that serves as the editor for a single entity, which sits as a deep graph in the $scope.fieldcontainer property. After I get a response from my REST API (via $resource), I add a watch to 'fieldcontainer'. I am using this watch to detect if the page/entity is "dirty". Right now I'm ...
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HTTPS with Visual Studio's built-in ASP.NET Development Server

Is there a way to access Visual Studio's built-in ASP.NET Development Server over HTTPS? 4 Answers ...