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Find an item in List by LINQ?
... what you want):
string search = "lookforme";
List<string> myList = new List<string>();
string result = myList.Single(s => s == search);
Note SingleOrDefault() will behave the same, except it will return null for reference types, or the default value for value types, instead of thr...
Cannot push to Git repository on Bitbucket
I created a new repository and I'm running into a strange error. I've used Git before on Bitbucket but I just reformatted and now I can't seem to get Git to work. After doing a commit, I had to add my email and name to the globals, but then it committed just fine.
...
Why are my PowerShell scripts not running?
... What's the default ExecutionPolicy value that Windows sets a new installation to?
– Matthew Lock
May 17 '17 at 6:38
5
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The key must be an application-specific resource id
...e-resources.html for more information.
My suggestion is that you create a new file called values/tags.xml and write:
<resources xmlns:android="http://schemas.android.com/apk/res/android">
<item name="TAG_ONLINE_ID" type="id"/>
</resources>
I think it's better to c...
How do I clone a Django model instance object and save it to the database?
...pk>)
obj.pk = None
obj.save()
If you want auto-generated key, set the new key to None.
More on UPDATE/INSERT here.
Official docs on copying model instances: https://docs.djangoproject.com/en/2.2/topics/db/queries/#copying-model-instances
...
What's the difference between Ruby's dup and clone methods?
...
First, clone copies the singleton class, while dup does not.
o = Object.new
def o.foo
42
end
o.dup.foo # raises NoMethodError
o.clone.foo # returns 42
Second, clone preserves the frozen state, while dup does not.
class Foo
attr_accessor :bar
end
o = Foo.new
o.freeze
o.dup.bar = 10 # ...
How to ignore xargs commands if stdin input is empty?
Consider this command:
6 Answers
6
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How can I read a large text file line by line using Java?
...
A common pattern is to use
try (BufferedReader br = new BufferedReader(new FileReader(file))) {
String line;
while ((line = br.readLine()) != null) {
// process the line.
}
}
You can read the data faster if you assume there is no character encoding. e.g. A...
Why is Android Studio reporting “URI is not registered”? [closed]
...ad some of their functionality built into it. Having now created a default new project, I added a new layout file and wanted to change the existing default 'hello world' example layout, and I got an "URI is not registered" error on the following lines:
...
ASP.NET MVC Relative Paths
...
While an old post, new readers should know that Razor 2 and later (default in MVC4+) completely resolves this problem.
Old MVC3 with Razor 1:
<a href="@Url.Content("~/Home")">Application home page</a>
New MVC4 with Razor 2 and l...