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Why does the default parameterless constructor go away when you create one with parameters
...rs, the default parameterless one goes away. I have always just accepted this fact, but now I've started wondering why.
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Command to get nth line of STDOUT
Is there any bash command that will let you get the nth line of STDOUT?
13 Answers
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CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true
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This is a part of security, you cannot do that. If you want to allow credentials then your Access-Control-Allow-Origin must not use *. You will have to specify the exact protocol + domain + port. For reference see these questio...
MetadataException: Unable to load the specified metadata resource
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This means that the application is unable to load the EDMX. There are several things which can cause this.
You might have changed the MetadataArtifactProcessing property of the model to Copy to Output Directory.
The connectio...
Get the week start date and week end date from week number
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answered Aug 12 '09 at 16:14
Robin DayRobin Day
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Unable to update the EntitySet - because it has a DefiningQuery and no element exis
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It usually happens because one of the following reasons:
Entity Set is mapped from Database view
A custom Database query
Database table doesn't have a primary key
After doing so, you may still need to update in the Entity Framework designer (or alternatively delete the entity and then add i...
Why would one use nested classes in C++?
...lasses? I have some material like Programming Principles and things like this IBM Knowledge Center - Nested Classes
4 Answ...
Unzipping files in Python
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edited Sep 24 '19 at 20:09
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pytest: assert almost equal
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I noticed that this question specifically asked about py.test. py.test 3.0 includes an approx() function (well, really class) that is very useful for this purpose.
import pytest
assert 2.2 == pytest.approx(2.3)
# fails, default is ± 2.3e-0...
How to prevent form from submitting multiple times from client side?
Sometimes when the response is slow, one might click the submit button multiple times.
23 Answers
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