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capturing self strongly in this block is likely to lead to a retain cycle

... I ran into this warning recently and wanted to understand it a bit better. After a bit of trial and error, I discovered that it originates from having a method start with either "add" or "save". Objective C treats method names starting with "new", "alloc", etc as returning a retained obj...
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How to create a trie in Python

...ly, I'll add that creating a directed acyclic word graph (DAWG) would be a bit more complex, because you have to detect situations in which your current word shares a suffix with another word in the structure. In fact, this can get rather complex, depending on how you want to structure the DAWG! You...
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Reference - What does this error mean in PHP?

...hink both are similarly cryptic. ~0 is more explicit IMO: negate the empty bit set, i. e. enable all flags. -1 is not meant to stand for «not found» like in strpos() in C, but as a bitset with all flags set, because -1 is binary 1111'1111'1111'1111 (for 32 bits). – nalply ...
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Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t

...ty name="System.Web.WebPages.Razor" publicKeyToken="31bf3856ad364e35" /> <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0"/> </dependentAssembly> <dependentAssembly> <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856...
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Fast Bitmap Blur For Android SDK

... answered Jan 15 '10 at 2:03 LukeLuke 90177 silver badges44 bronze badges ...
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What is the fastest factorial function in JavaScript? [closed]

...tKirby Javascript automatically converts these numbers to their closest 64-bit float representation. The real benefit of not having the full precision numbers in the code is reduced file size. – le_m Mar 9 '17 at 17:28 ...
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How to backup a local Git repository?

... I started hacking away a bit on Yar's script and the result is on github, including man pages and install script: https://github.com/najamelan/git-backup Installation: git clone "https://github.com/najamelan/git-backup.git" cd git-backup sudo ./in...
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What is a good regular expression to match a URL? [duplicate]

... I changed your expression a bit so it will work in all cases i need, including uri with http:// or www "/([^\s\.]+\.[^\s]{2,}|www\.[^\s]+\.[^\s]{2,})/gi" – Ismael Jan 14 '15 at 11:08 ...
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What does functools.wraps do?

...lt) and therefore to use something like Signature.bind(). Now there is a bit of confusion between functools.wraps and decorators, because a very frequent use case for developing decorators is to wrap functions. But both are completely independent concepts. If you're interested in understanding the...
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In Python how should I test if a variable is None, True or False

...unction to include more return codes, maintaining this code might become a bit of an issue. The simulate might also raise an exception on the parsing error, in which case you'd either would catch it here or let it propagate a level up and the printing bit would be reduced to a one-line if-else stat...