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Difference between \b and \B in regex

...cters as well as at any position between two non-word characters. Source: http://www.regular-expressions.info/wordboundaries.html share | improve this answer | follow ...
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What is the purpose of willSet and didSet in Swift?

...ws conditional setting of an actual stored property //True model data var _test : Int = 0 var test : Int { get { return _test } set (aNewValue) { //I've contrived some condition on which this property can be set if (aNewValue != test) { _test = aNewV...
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What is the difference between ELF files and bin files?

... some resources: ELF for the ARM architecture http://infocenter.arm.com/help/topic/com.arm.doc.ihi0044d/IHI0044D_aaelf.pdf ELF from wiki http://en.wikipedia.org/wiki/Executable_and_Linkable_Format ELF format is generally the default output of compiling. if you use GNU...
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Resource interpreted as Document but transferred with MIME type application/zip

...n specify the HTML5 download attribute in your <a> tag. <a href="http://example.com/archive.zip" download>Export</a> https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#attr-download share ...
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WARNING: Can't verify CSRF token authenticity rails

....setRequestHeader("X-CSRF-Token", token); }); taken from this blog post: http://weblog.rubyonrails.org/2011/2/8/csrf-protection-bypass-in-ruby-on-rails. In my case, the session was being reset upon each ajax request. Adding the above code solved that issue. ...
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APP被手机识别为疑似病毒 - App应用开发 - 清泛IT社区,为创新赋能!

...。 2、如果想要发布,可以先线上检测一下:https://m.qq.com/security_lab/scans_online.jsp 上传APK文件检测。如果显示为“未知软件”,则说明手机管家还未标记这个APK,必须强行触发规则,让其显示为风险应用。打开QQ邮箱写信,将AP...
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Looping through localStorage in HTML5 and JavaScript

... from code execution. And often, it's also much faster. See blog.mozilla.com/webdev/2009/02/12/native-json-in-firefox-31 – Matthew Flaschen Jun 29 '10 at 21:53 ...
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Create singleton using GCD's dispatch_once in Objective-C

...er here: instancetype + (instancetype)sharedInstance { static dispatch_once_t once; static id sharedInstance; dispatch_once(&once, ^ { sharedInstance = [self new]; }); return sharedInstance; } + (Class*)sharedInstance { static dispatch_once_t once; ...
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Get local IP address

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Get nth character of a string in Swift programming language

... Why is this not built-in? The error message says "see the documentation comment for discussion". Apple provides the following explanation in the file UnavailableStringAPIs.swift: Subscripting strings with integers is not available. The concept of "the ith character in a string" has dif...