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Convert DateTime to String PHP

... Its worked for me $start_time = date_create_from_format('Y-m-d H:i:s', $start_time); $current_date = new DateTime(); $diff = $start_time->diff($current_date); $aa = (string)$diff->format('%R%a'); echo gettype($aa); ...
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Java's L number (long) specification

... when using literal syntax for byte (or short) arrays. Quoting the example from the proposal: MAJOR BENEFIT: Why is the platform better if the proposal is adopted? cruddy code like byte[] stuff = { 0x00, 0x7F, (byte)0x80, (byte)0xFF}; can be recoded as byte[] ufum7 = { 0x00y, 0...
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Is there a more elegant way of adding an item to a Dictionary safely?

... simply dict[key] = view; From the MSDN documentation of Dictionary.Item The value associated with the specified key. If the specified key is not found, a get operation throws a KeyNotFoundException, and a set operation creates a new eleme...
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Why are `private val` and `private final val` different?

... I think the confusion here arises from conflating immutability with the semantics of final. vals can be overridden in child classes and therefore can't be treated as final unless marked as such explicitly. @Brian The REPL provides class scope at the line le...
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How to retry after exception?

... Do a while True inside your for loop, put your try code inside, and break from that while loop only when your code succeeds. for i in range(0,100): while True: try: # do stuff except SomeSpecificException: continue break ...
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How do I pronounce “=>” as used in lambda expressions in .Net

... From MSDN: All lambda expressions use the lambda operator =>, which is read as "goes to". share | improve this ...
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how to use XPath with XDocument?

... you can use the example from Microsoft - for you without namespace: using System.Xml.Linq; using System.Xml.XPath; var e = xdoc.XPathSelectElement("./Report/ReportInfo/Name"); should do it ...
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diff to output only the file names

... From the diff man page: -q   Report only whether the files differ, not the details of the differences. -r   When comparing directories, recursively compare any subdirectories found. Example command: diff -qr dir1 d...
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Where is HttpContent.ReadAsAsync?

...a = await response.Content.ReadAsStringAsync(); //use JavaScriptSerializer from System.Web.Script.Serialization JavaScriptSerializer JSserializer = new JavaScriptSerializer(); //deserialize to your class products = JSserializer.Deserialize<List<Product>>(data); ...
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What does `:_*` (colon underscore star) do in Scala?

I have the following piece of code from this question : 4 Answers 4 ...