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Best way to check if object exists in Entity Framework?
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if (context.MyEntity.Any(o => o.Id == idToMatch))
{
// Match!
}
And in vb.net
If context.MyEntity.Any(function(o) o.Id = idToMatch) Then
' Match!
End If
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Ruby arrays: %w vs %W
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Yes. When printing output, Ruby always uses double quotes and escapes characters like #. '#{foo}' and "\#{foo}" give you the same string, which you can verify with '#{foo}' == "\#{foo}" in irb.
– Brian Campbell
Dec 4 '16 at 5:37
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How to keep a Python script output window open?
...a few options:
Run the program from an already-open terminal. Open a command prompt and type:
python myscript.py
For that to work you need the python executable in your path. Just check on how to edit environment variables on Windows, and add C:\PYTHON26 (or whatever directory you installed pyt...
File Upload using AngularJS
...nfortunately that is a browser object not available in Internet Explorer 9 and below. If you need to support those older browsers, you will need a backup strategy such as using <iframe> or Flash.
There are already many Angular.js modules to perform file uploading. These two have explicit sup...
How to put an image in div with CSS?
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This answer by Jaap :
<div class="image"></div>
and in CSS :
div.image {
content:url(http://placehold.it/350x150);
}
you can try it on this link :
http://jsfiddle.net/XAh2d/
this is a link about css content
http://css-tricks.com/css-content/
This has been teste...
How do I run a program with commandline arguments using GDB within a Bash script?
... on GDB, usually, the arguments for the program are given at the run command. Is there a way to run the program using GDB and as well as give arguments within a shell script?
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Is there a way to programmatically scroll a scroll view to a specific edit text?
...ields that the user must fill in. I have a checkbox half way down my form, and when the user checks it I want to scroll to a specific part of the view. Is there any way to scroll to an EditText object (or any other view object) programmatically?
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Should I use alias or alias_method?
...ned in the Module class.)
alias's behavior changes depending on its scope and can be quite unpredictable at times.
Verdict: Use alias_method - it gives you a ton more flexibility.
Usage:
def foo
"foo"
end
alias_method :baz, :foo
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Changing a specific column name in pandas DataFrame
...index=None, columns=None, copy=True, inplace=False)
Docstring:
Alter index and / or columns using input function or
functions. Function / dict values must be unique (1-to-1). Labels not
contained in a dict / Series will be left as-is.
Parameters
----------
index : dict-like or function, optional
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What's the difference between belongs_to and has_one?
What is the difference between a belongs_to and a has_one ?
5 Answers
5
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