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HttpClient not supporting PostAsJsonAsync method C#

I am trying to call a web API from my web application. I am using .Net 4.5 and while writing the code I am getting the error HttpClient does not contain a definition PostAsJsonAsync method. ...
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How to see which commits in one branch aren't in the other?

...rence. For example, if you have two branches, A and B, a usual way to list all commits on only one side of them is with --left-right, like the example above in the description of that option. It however shows the commits that were cherry-picked from the other branch (for example, "3rd on b" may be c...
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What is the Python equivalent of static variables inside a function?

... there is only one instance of foo - this one function. all invocations access the same variable. – Claudiu Nov 10 '08 at 23:49 124 ...
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What is the meaning of single and double underscore before an object name?

...at least two leading underscores, at most one trailing underscore) is textually replaced with _classname__spam, where classname is the current class name with leading underscore(s) stripped. This mangling is done without regard to the syntactic position of the identifier, so it can be used to define...
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mmap() vs. reading blocks

I'm working on a program that will be processing files that could potentially be 100GB or more in size. The files contain sets of variable length records. I've got a first implementation up and running and am now looking towards improving performance, particularly at doing I/O more efficiently since...
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Finding the index of an item in a list

... complete. Some caveats about list.index follow. It is probably worth initially taking a look at the documentation for it: list.index(x[, start[, end]]) Return zero-based index in the list of the first item whose value is equal to x. Raises a ValueError if there is no such item. The optional argum...
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Execution of Python code with -m option or not

...st python -m foo.bar.baz foo.bar __main__ As a result, Python has to actually care about packages when using the -m switch. A normal script can never be a package, so __package__ is set to None. But run a package or module inside a package with -m and now there is at least the possibility of a pac...
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Which is more preferable to use: lambda functions or nested functions ('def')?

...nction objects, but list comprehensions and generator expressions are generally more readable than those functions and can cover all use cases, without the need of lambdas. For the cases you really need a small function object, you should use the operator module functions, like operator.add instea...
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__getattr__ on a module

... A while ago, Guido declared that all special method lookups on new-style classes bypass __getattr__ and __getattribute__. Dunder methods had previously worked on modules - you could, for example, use a module as a context manager simply by defining __enter__...
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Javascript “this” pointer within nested function

... In JavaScript the this object is really based on how you make your function calls. In general there are three ways to setup the this object: someThing.someFunction(arg1, arg2, argN) someFunction.call(someThing, arg1, arg2, argN) someFunction.apply(someThing...