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Why use 'virtual' for class properties in Entity Framework model definitions?
... nullable Foreign Key in SQL. You do not HAVE to eagerly join every keyed table when performing a query, but when you need the information -- it becomes demand-driven.
I also mentioned nullable because many navigation properties are not relevant at first. i.e. In a customer / Orders scenario, y...
How is a CRC32 checksum calculated?
...for computing a CRC: an algebraic approach, a bit-oriented approach, and a table-driven approach. In Reversing CRC - Theory and Practice*, each of these three algorithms/approaches is explained in theory accompanied in the APPENDIX by an implementation for the CRC32 in the C programming language.
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What is the JavaScript >>> operator and how do you use it?
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+2 in depth description and table, -1 because array.length validates itself and can't be arbitrarily set to anything that is not an integer or 0 (FF throws this error: RangeError: invalid array length).
– Justin Johnson
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Which equals operator (== vs ===) should be used in JavaScript comparisons?
... between == and ===.
Source: http://dorey.github.io/JavaScript-Equality-Table/
var1 === var2
When using === for JavaScript equality testing, everything is as is. Nothing gets converted before being evaluated.
var1 == var2
When using == for JavaScript equality testing, some
funk...
AngularJS : When to use service instead of factory
...
it's very helpful for me. +1 for comparison table
– Vu Anh
Dec 26 '14 at 3:21
5
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Django: Why do some model fields clash with each other?
...le',
Including the myapp instead of myapp.module causes all the database tables to be created with incorrect names, so this seems to be the correct way to do it.
I came across this post while looking for a solution to this problem so figured I'd put this here :)
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How to Test a Concern in Rails
...p the database accordingly (because your dummy class won't have a database table backing it). Moreover, you'll want to not only test the concern but also test the concern's behavior inside your model specs.
So why not kill two birds with one stone? By using RSpec's shared example groups, you can te...
Access parent DataContext from DataTemplate
...ive source in Silverlight. After searching and reading I did not find a suitable solution without using some additional Binding library. But, here is another approach for gaining access to the parent DataContext by directly referencing an element of which you know the data context. It uses Binding E...
Maven command to list lifecycle phases along with bound goals?
...e ${0} )
echo "Lists the goals of mvn project(s) by phase in a table";
echo
echo "Usage:";
echo " ${programName} -d|--debug -g|--goal goal -b|--build_plan build_plan [*directory]";
echo
echo " --goal The goal for t...
How can I hash a password in Java?
...id SecretKeyFactory", ex);
}
}
/**
* Hash a password in an immutable {@code String}.
*
* <p>Passwords should be stored in a {@code char[]} so that it can be filled
* with zeros after use instead of lingering on the heap and elsewhere.
*
* @deprecated Use {@link #...