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Objective-C ARC: strong vs retain and weak vs assign

... In fact, under ARC it is a compilation error to use assign for an object. You have to use either weak or unsafe_unretained (which is unsafe, obviously) if you don't want to retain the property. – cobbal Jan 19 '12...
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Measure and Benchmark Time for Ruby Methods

...IC) instead. But for rough calculations this doesn't matter. blog.dnsimple.com/2018/03/elapsed-time-with-ruby-the-right-way – Patrick Brinich-Langlois Feb 21 '19 at 19:13 add ...
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How do you check “if not null” with Eloquent?

...mented previously) were added to the documentation in version 5.1: laravel.com/docs/5.1/queries#where-clauses . – Ben Johnson Jul 9 '15 at 20:52 ...
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test if event handler is bound to an element in jQuery [duplicate]

...ta(element, 'events'), but it's undocumented (and may change). blog.jquery.com/2012/08/09/jquery-1-8-released – Rocket Hazmat Aug 16 '12 at 18:43 ...
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Most lightweight way to create a random string and a random hexadecimal number

... See yaronf's answer below on using string.hexdigits: stackoverflow.com/a/15462293/311288 "string.hexdigits returns 0123456789abcdefABCDEF (both lowercase and uppercase), [...]. Instead, just use random.choice('0123456789abcdef')." – Thomas Jun 27 '14 at...
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What is the easiest way in C# to trim a newline off of a string?

... While trimming ANY combination of characters that make up a new line char(s) does address underlying problem and the spirit of the question, it also leaves a potential for unwanted functionality in the general sense. In a file processing senari...
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Comet implementation for ASP.NET? [closed]

...ys to implement gmail-like messaging inside a browser, and arrived at the Comet concept. However, I haven't been able to find a good .NET implementation that allows me to do this within IIS (our application is written in ASP.NET 2.0). ...
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What is the command to exit a Console application in C#?

What is the command in C# for exit a Console Application? 4 Answers 4 ...
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Use PPK file in Mac Terminal to connect to remote connection over SSH [closed]

...the key, open a terminal window and: ssh -i privatekey.pem user@my.server.com The private key must have tight security settings otherwise SSH complains. Make sure only the user can read the key. chmod go-rw privatekey.pem ...
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Access POST values in Symfony2 request object

... edited Jun 20 at 9:12 Community♦ 111 silver badge answered Aug 27 '12 at 12:56 timaschewtimaschew ...