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Why can't an anonymous method be assigned to var?
...<T> type that takes a ref anything.
var x2 = y=>123;
We don't know the type of the formal parameter, though we do know the return. (Or do we? Is the return int? long? short? byte?)
var x3 = (int y)=>null;
We don't know the return type, but it can't be void. The return type could be...
Should IBOutlets be strong or weak under ARC?
... footprint was crucial, hence there was view unloading. That changed as we now have more and more RAM, and Apple optimized UIViews in iOS 6, so that on memory warnings, a lot of memory can be freed without unloading the view.
– Tammo Freese
Sep 4 '16 at 16:11
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Understanding :source option of has_one/has_many through of Rails
...want to access Dog.find(123).breeds as a nice and convenient association.
Now, if we now want to create a has_many :dog_breeds, :through => :dogs association on Pet, we suddenly have a problem. Rails won't be able to find a :dog_breeds association on Dog, so Rails can't possibly know which Dog a...
ReactJS Two components communicating
... arrange those components. A few example scenarios that come to mind right now:
<Filters /> is a child component of <List />
Both <Filters /> and <List /> are children of a parent component
<Filters /> and <List /> live in separate root components entirely.
Th...
Custom domain for GitHub project pages
...tells GitHub to use this repo to handle traffic to this domain.
4. Wait
Now wait 5 minutes, your project page should now be live.
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Why is there a difference in checking null against a value in VB.NET and C#?
... the VB.NET semantics, which in essence gives NULL the semantics "I don't know yet". Then the comparison of 5 to "I don't know yet". is naturally "I don't know yet"; ie NULL. This has the additional advantage of mirroring the behaviour of NULL in (most if not all) SQL databases. This is also a more ...
How to replace a character with a newline in Emacs?
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It's really a good idea for the characters which I don't know the key bind.
– Lei
Mar 5 '09 at 18:16
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Strengths of Shell Scripting compared to Python [closed]
...nd was able to do most of the things a shell script can do in Python. I am now not sure whether I should invest my time in learning shell scripting anymore. So I want to ask:
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What is the difference between MOV and LEA?
I would like to know what the difference between these instructions is:
12 Answers
12
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How to change the DataTable Column Name?
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I just tried this solution now and it works fine - it did not do any changes or wipe out the underlying column data. Maybe something else is happening in your code...
– AshesToAshes
Aug 15 '13 at 15:25
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