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I want to get the type of a variable at runtime

...ific type, such as this: val x: Any = 5 def f[T](v: T) = v match { case _: Int => "Int" case _: String => "String" case _ => "Unknown" } f(x) Here it doesn't matter what is the type of the variable, Any. What matters, what is checked is the type of 5, the value. In fact,...
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Finding what branch a Git commit came from

...ery interesting: SYNOPSIS git-what-branch [--allref] [--all] [--topo-order | --date-order ] [--quiet] [--reference-branch=branchname] [--reference=reference] <commit-hash/tag>... OVERVIEW Tell us (by default) the earliest causal path of commits and merges to cause the requested...
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What do the terms “CPU bound” and “I/O bound” mean?

...: #define SIZE 1000000000 unsigned int is[SIZE]; unsigned int sum = 0; size_t i = 0; for (i = 0; i < SIZE; i++) /* Each one of those requires a RAM access! */ sum += is[i] Parallelizing that by splitting the array equally for each of your cores is of limited usefulness on common modern d...
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How can I have a newline in a string in sh?

... What I did based on the other answers was NEWLINE=$'\n' my_var="__between eggs and bacon__" echo "spam${NEWLINE}eggs${my_var}bacon${NEWLINE}knight" # which outputs: spam eggs__between eggs and bacon__bacon knight ...
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Force IE compatibility mode off using tags

...e docs: http://msdn.microsoft.com/en-us/library/cc288325(VS.85).aspx#ctl00_contentContainer_ctl16 Using <meta http-equiv="X-UA-Compatible" content=" _______ " /> The Standard User Agent modes (the non-emulate ones) ignore <!DOCTYPE> directives in your page and render based on the st...
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How to change the timeout on a .NET WebClient object

...> Public Class WebClient Inherits System.Net.WebClient Private _TimeoutMS As Integer = 0 Public Sub New() MyBase.New() End Sub Public Sub New(ByVal TimeoutMS As Integer) MyBase.New() _TimeoutMS = TimeoutMS End Sub ''' <summary> ''' S...
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'IF' in 'SELECT' statement - choose output value based on column values

...HEN 'South America' ELSE 'Europe' END AS Continent FROM Suppliers ORDER BY CompanyName; share | improve this answer | follow | ...
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Converting XML to JSON using Python?

...nversion. from xml.etree import ElementTree as ET xml = ET.parse('FILE_NAME.xml') parsed = parseXmlToJson(xml) def parseXmlToJson(xml): response = {} for child in list(xml): if len(list(child)) > 0: response[child.tag] = parseXmlToJson(child) else: response[child.t...
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Collapse sequences of white space into a single character and trim string

... d*mn line endings and auto-format... it doesn't deal with "hello______foo" (assume _ -> " " because formatting comments is hard) – Brian Postow Sep 15 '09 at 14:11 32...
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How to delete a file from SD card?

...id 4.4+. But the same code working for 4.3/ – hasnain_ahmad Jul 18 '16 at 12:31  |  show 4 more comments ...