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Do I cast the result of malloc?

...ation, note that I said "you don't cast", not "you don't need to cast". In my opinion, it's a failure to include the cast, even if you got it right. There are simply no benefits to doing it, but a bunch of potential risks, and including the cast indicates that you don't know about the risks. Also n...
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How do I rename the extension for a bunch of files?

...here's also a GNU program of the same name that does roughly the same job. My Mac doesn't have a system-provided 'rename' command - or it isn't on my PATH (which is moderately comprehensive). – Jonathan Leffler Aug 3 '09 at 22:14 ...
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How to extract base URL from a string in JavaScript?

...ode minimizers, code should be human readable and this way is better... in my opinion. var pathArray = "https://somedomain.com".split( '/' ); var protocol = pathArray[0]; var host = pathArray[2]; var url = protocol + '//' + host; Or use Davids solution from below. ...
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Extract a dplyr tbl column as a vector

... answered Jul 14 '14 at 6:42 Tommy O'DellTommy O'Dell 6,3531313 gold badges5151 silver badges6767 bronze badges ...
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How can I use Timer (formerly NSTimer) in Swift?

...imer.scheduledTimerWithTimeInterval(0.4, target: self, selector: #selector(MyClass.update), userInfo: nil, repeats: true) // Swift <2.2 selector syntax let timer = NSTimer.scheduledTimerWithTimeInterval(0.4, target: self, selector: "update", userInfo: nil, repeats: true) } // must be int...
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Is it possible to do start iterating from an element other than the first using foreach?

I'm thinking about implementing IEnumerable for my custom collection (a tree) so I can use foreach to traverse my tree. However as far as I know foreach always starts from the first element of the collection. I would like to choose from which element foreach starts. Is it possible to somehow chang...
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How to get index of object by its property in JavaScript?

...over the array twice. Instead you should use the findIndex method shown in my answer – silverlight513 Mar 13 '19 at 11:23  |  show 10 more com...
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How do I URL encode a string

...DaveDeLong That may be where I got it. Its been a standard category in all my projects for a year or so, so I imagine you may have been the original source! I've edited the wording so it doesnt seem like I am trying to take credit for writing it ). – chown Nov...
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pythonic way to do something N times without an index variable?

... @Hamish: My test with 2.6 says 32% faster (23.2 us vs 17.6 us for N=1000). But that is a really time time anyways. I would default to the OP's code because it is more immediately readable (to me). – Mike Boers ...
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How do I add indices to MySQL tables?

I've got a very large MySQL table with about 150,000 rows of data. Currently, when I try and run 7 Answers ...