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What does $$ mean in the shell?

.... This does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.) ...
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get size of json object

... with the first solution given that my JSON object is stored in a variable called jsonObject and I have the same JSON as above: "phones":[{"number":"XXXXXXXXXX","type":"mobile"},{"number":"XXXXXXXXXX","type":"mobile"}] – Erick Feb 7 '16 at 18:55 ...
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How to get file creation & modification date/times in Python?

...ting some sort of modification date in a cross-platform way is easy - just call os.path.getmtime(path) and you'll get the Unix timestamp of when the file at path was last modified. Getting file creation dates, on the other hand, is fiddly and platform-dependent, differing even between the three big...
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Add new item count to icon on button - Android

... a TextView, allowing you to set the numeric value to anything you like by calling setText(). Set the background of the TextView as an XML <shape> drawable, with which you can create a solid or gradient circle with a border. An XML drawable will scale to fit the view as it resizes with more ...
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What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?

...for example, we need to use one of our own methods in a query we would typically write something like var query = context.Observations.Select(o => o.Id) .AsEnumerable().Select(x => MySuperSmartMethod(x)) ToList – which converts an IEnumerable<T> to a List<T> ...
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How to sort a NSArray alphabetically?

...message that the selector is specifying. Then inside this message you just call the NSString compare for the properties of your object that you want to compare. – lgdev Jun 22 '12 at 18:00 ...
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EF Code First foreign key without navigation property

...parison, with navigation properties defined, // (let's say you call it Parent in the Child class and Children // collection in Parent class), you might have to configure them // like: // b.HasOne(c => c.Parent) // .WithMany(p => ...
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Difference between ApiController and Controller in ASP.NET MVC

...L based web/internet/intranet application - maybe with the occasional AJAX call returning json here and there - stick with MVC/Controller. If you want to provide a data driven/REST-ful interface to a system, go with WebAPI. You can combine both, of course, having an ApiController cater AJAX calls fr...
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Unsafe JavaScript attempt to access frame with URL

... What would the badge be called? "Responded to a lazy person" – nzifnab Jan 29 '13 at 19:12 1 ...
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How to Implement Custom Table View Section Headers and Footers with Storyboard

...entifier instead of dequeueReusableCellWithIdentifier. So in viewDidLoad, call either registerNib:forHeaderFooterViewReuseIdentifier: or registerClass:forHeaderFooterViewReuseIdentifier:. Then in viewForHeaderInSection, call tableView:dequeueReusableHeaderFooterViewWithIdentifier:. You do not use a...