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PHP: Storing 'objects' inside the $_SESSION
...ite cool because when I jump to another page I still have my object. Now before I start using this approach I would like to find out if it is really such a good idea or if there are potential pitfalls involved.
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How can I display just a portion of an image in HTML/CSS?
...at's 250x250px in HTML. How can I do that. Also, is there a way to do this for css:url() references?
4 Answers
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Pandas read_csv low_memory and dtype options
...rce]
The reason you get this low_memory warning is because guessing dtypes for each column is very memory demanding. Pandas tries to determine what dtype to set by analyzing the data in each column.
Dtype Guessing (very bad)
Pandas can only determine what dtype a column should have once the whole fi...
No identities were available - administrator request
... one. (The old one was probably expired which is one of the biggest causes for the error message you saw)
Verify that your bundle ID is correct (CaSe SeNsEtIvE)
Back to XCode Organizer - Devices. Click TEAM (Left sidebar) and click "Refresh" (right-bottom). You will find XCode fetch the new profile....
Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
...ws is a different class through that method), but there's no real way to enforce that an array only contains objects of a given class.
In general, there doesn't seem to be a need for such a constraint in Objective-C. I don't think I've ever heard an experienced Cocoa programmer wish for that featu...
Programmatically change the src of an img tag
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For simple things like setting the value of an input or changing an image src (especial when you're using elements that have IDs), you really should try to avoid jQuery, since the call is so much slower than the pure JS call
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Verifying a specific parameter with Moq
... the mocked method, and then write standard Assert methods to validate it. For example:
// Arrange
MyObject saveObject;
mock.Setup(c => c.Method(It.IsAny<int>(), It.IsAny<MyObject>()))
.Callback<int, MyObject>((i, obj) => saveObject = obj)
.Returns("xyzzy");
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Setting HttpContext.Current.Session in a unit test
... Is it intentional that the backing field m_context is only returned for a mock context (when set via SetCurrentContext) and that for the real HttpContext, a wrapper is created for every call to Current?
– Stephen Price
Jul 1 '13 at 8:44
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Design Pattern for Undo Engine
I'm writing a structural modeling tool for a civil enginering application. I have one huge model class representing the entire building, which include collections of nodes, line elements, loads, etc. which are also custom classes.
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How to check if field is null or empty in MySQL?
...se field1
end as field1
from tablename
If you only want to check for null and not for empty strings then you can also use ifnull() or coalesce(field1, 'empty'). But that is not suitable for empty strings.
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