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TypeScript: casting HTMLElement
...t do:
var script = (<HTMLScriptElement[]>document.getElementsByName(id))[0];
You get the error
Cannot convert 'NodeList' to 'HTMLScriptElement[]'
But you can do :
(<HTMLScriptElement[]><any>document.getElementsByName(id))[0];
...
How to delete a record in Django models?
...re are a couple of ways:
To delete it directly:
SomeModel.objects.filter(id=id).delete()
To delete it from an instance:
instance = SomeModel.objects.get(id=id)
instance.delete()
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improv...
Sort NSArray of date strings or objects
... of items by date
[self.items sortUsingComparator:^NSComparisonResult(id obj1, id obj2){
return [obj2.date compare:obj1.date];
}];
But this does assume that the date is stored as a NSDate rather a NString, which should be no problem to make/do. Preferably, I recommend also storing...
Calculate RSA key fingerprint
... am not sure how do find my RSA key fingerprint. I originally followed a guide to generate an SSH key on Linux.
14 Answers
...
EntityType has no key defined error
...ifferent things can cause this error. In my case, I mistakenly marked my "Id" field "private" instead of "public" (a habit from Java/JPA). Larry Raymond's response below is arguably the "best" reply to this question. It lists most of the common scenarios behind "EntityType has no key defined erro...
Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
..., xmlns declares a Namespace. In fact, when you do:
<LinearLayout android:id>
</LinearLayout>
Instead of calling android:id, the xml will use http://schemas.android.com/apk/res/android:id to be unique. Generally this page doesn't exist (it's a URI, not a URL), but sometimes it is a UR...
When should I use the assets as opposed to raw resources in Android?
I'm in the mid of my Android studies, and I just covered the Assets and Raw resources. I'm trying to understand the reason for using Raw resources vs. Assets.
...
How to update only one field using Entity Framework?
...dislav's answer updated to use DbContext (introduced in EF 4.1):
public void ChangePassword(int userId, string password)
{
var user = new User() { Id = userId, Password = password };
using (var db = new MyEfContextName())
{
db.Users.Attach(user);
db.Entry(user).Property(x => x.Pass...
Resizing an iframe based on content
...s type of problem, but slightly in reverse to your situation - we were providing the iframed content to sites on other domains, so the same origin policy was also an issue. After many hours spent trawling google, we eventually found a (somewhat..) workable solution, which you may be able to adapt to...
How to get nice formatting in the Rails console
...rom ruby-docs
In older Ruby versions, ie. <= 1.9, Syck is still provided, however it
was completely removed with the release of Ruby 2.0.0.
For rails 4/ruby 2 you could use just
puts object.to_yaml
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