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Why must a lambda expression be cast when supplied as a plain Delegate parameter

...her be converted to a delegate type or an expression tree - but it has to know which delegate type. Just knowing the signature isn't enough. For instance, suppose I have: public delegate void Action1(); public delegate void Action2(); ... Delegate x = () => Console.WriteLine("hi"); What woul...
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Return array in a function

...his example also modifies the parameter list by adding the const keyword. Now you get a reference without copying it, but you can't modify it, so the caller knows it'll be the same as before the function got to it. All of this is swell, but idiomatic c++ rarely works with collections as a whole....
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How do you run a single test/spec file in RSpec?

...troller_spec.rb \ SPEC_OPTS="-e \"should log in with cookie\"" Now figure out how to embed this into your editor. share | improve this answer | follow ...
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What's the difference between JPA and Hibernate? [closed]

... This metaphor does not add understanding. If you already know the difference, you'll find it amuzing. If you don't know the difference, you will still not know it. – Nick Volynkin Feb 15 '17 at 10:18 ...
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Why Java needs Serializable interface?

...ne, and I was probably too immature to see it that way at the time. Fixing now :) – Yoni Roit Mar 6 '13 at 19:55  |  show 2 more comments ...
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How to use shell commands in Makefile

...e not found a quick reference link to a POSIX document for this, nor do I know off-hand which make variants support ::= assignment, although GNU make does today, with the same meaning as :=, i.e., do the assignment right now with expansion. Note that VAR := $(shell command args...) can also be spel...
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How to change past commit to include a missed file?

... add a file to the change set. After other commits, I realized the file is now missing from a HEAD^4 commit. 4 Answers ...
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NUnit isn't running Visual Studio 2010 code

... ".NET Framework 4.0". I then built the solution without any errors. I can now use the NUnit GUI app to run tests built for .NET 4.0. I've not done exhaustive testing of this build so there may be problems, but for my purposes it works fine. Update: It is not necessary to rebuild NUnit. I discovere...
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Hiding elements in responsive layout?

...e the case with Bootstrap 3.2.0— .visible-xs and the like still work for now, while .hidden-phone and friends are completely absent from Bootstrap's functionality. – Slipp D. Thompson Nov 1 '14 at 7:29 ...
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Mimicking sets in JavaScript?

...or somethings called ES 2015 has a built-in Set object. It is implemented now in some browsers. Since browser availability changes over time, you can look at the line for Set in this ES6 compatibility table to see the current status for browser availability. One advantage of the built-in Set objec...