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Are foreign keys really necessary in a database design?
... ON DELETE CASCADE. This means that if you have one table containing users and another containing orders or something, then deleting a user could automatically delete all orders that point to that user.
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AngularJS: Injecting service into a HTTP interceptor (Circular dependency)
I'm trying to write a HTTP interceptor for my AngularJS app to handle authentication.
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When should I use double or single quotes in JavaScript?
...r use of single vs. double in different libraries is programmer preference and/or API consistency. Other than being consistent, use whichever best suits the string.
Using the other type of quote as a literal:
alert('Say "Hello"');
alert("Say 'Hello'");
This can get complicated:
alert("It's \"game\"...
How can I test that a value is “greater than or equal to” in Jasmine?
...s a decimal (or 0), so the number should be greater than or equal to zero and less than 1.
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How to set time zone of a java.util.Date?
...teFormat object, to tell it in which timezone you want to display the date and time.
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How to import existing *.sql files in PostgreSQL 8.4?
I am using PostgreSQL 8.4, and I have some *.sql files to import into a database. How can I do so?
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What is the Oracle equivalent of SQL Server's IsNull() function?
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coalesce is supported in both Oracle and SQL Server and serves essentially the same function as nvl and isnull. (There are some important differences, coalesce can take an arbitrary number of arguments, and returns the first non-null one. The return type for isn...
Removing an item from a select box
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If you need to remove an option and select another: $('#selectBox').val('option2').find('option[value="option1"]').remove();
– Radu Maris
Feb 8 '12 at 9:35
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How do I get formatted JSON in .NET using C#?
I am using .NET JSON parser and would like to serialize my config file so it is readable. So instead of:
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Python: Bind an Unbound Method?
...descriptors, so you can bind them by calling their __get__ method:
bound_handler = handler.__get__(self, MyWidget)
Here's R. Hettinger's excellent guide to descriptors.
As a self-contained example pulled from Keith's comment:
def bind(instance, func, as_name=None):
"""
Bind the functi...