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Why / when would it be appropriate to override ToString?
I'm studying C# and I wonder what the point and benefit of overriding ToString might be, as shown in the example below.
1...
Differences between Agda and Idris
...o dive into dependently-typed programming and have found that the Agda and Idris languages are the closest to Haskell, so I started there.
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JavaScript get clipboard data on paste event (Cross browser)
....
In the past this was not generally possible in a cross-browser way. The ideal would be to be able to get the pasted content via the paste event, which is possible in recent browsers but not in some older browsers (in particular, Firefox < 22).
When you need to support older browsers, what you...
How to set focus on input field?
...
When a Modal is opened, set focus on a predefined <input> inside this Modal.
Define a directive and have it $watch a property/trigger so it knows when to focus the element:
Name: <input type="text" focus-me="shouldBeOpen">
app.directive('focusMe', ['$timeout', '$parse',...
Django rest framework nested self-referential objects
...e a serializer as a field on itself, but you can use these methods to override what fields are used by default.
class CategorySerializer(serializers.ModelSerializer):
parentCategory = serializers.PrimaryKeyRelatedField()
class Meta:
model = Category
fields = ('parentCategor...
How to download Xcode DMG or XIP file?
...opment tools on https://developer.apple.com/download/more/ (requires Apple ID to login).
You must login to have a valid session before downloading anything below.
*(Newest on top. For each minor version (6.3, 5.1, etc.) only the latest revision is kept in the list.)
Xcode 12
12.2 beta
12 (Requires...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
...eld } equals new { y.field } there is a compiler error. Functionally you didn't change anything. Using .Net 4.6.1.
– user2415376
Oct 28 '16 at 13:59
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Change key pair for ec2 instance
...one of the answers below.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html#replacing-lost-key-pair
Here is what I did, thanks to Eric Hammond's blog post:
Stop the running EC2 instance
Detach its /dev/xvda1 volume (let's call it volume A) - see here
Start new t1.micro EC2 i...
What exactly does the post method do?
...hich implements Runnable.
getView().post(new Runnable() {
@Override
public void run() {
getView().startAnimation(a);
}
});
code : getView().startAnimation(a);
in your code,
post causes the Runnable (the code will be run a in different thread) to ad...
INSERT statement conflicted with the FOREIGN KEY constraint - SQL Server
...ck from the view to the controller, so it was always 0 (which was not a valid id, but the controller would have no way of knowing that.)
– neminem
Dec 4 '13 at 19:49
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