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Changing the image source using jQuery
...will work with 2, 3, 5, 10, or 100 images... cycling through each image in order and restarting at the first image when the last image is reached.
Additionally, .attr() is used to get and set the "src" attribute of the images. To pick elements from among the $images object, I set $images as the jQu...
Using Mockito to test abstract classes
...below, this doesn't work when the abstract class calls abstract methods in order to be tested, which is often the case.
– Richard Nichols
Aug 6 '12 at 3:34
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How can I find out what FOREIGN KEY constraint references a table in SQL Server?
...MN_USAGE kcu
ON kcu.CONSTRAINT_NAME = rc.UNIQUE_CONSTRAINT_NAME
ORDER BY ccu.table_name
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Check if an image is loaded (no errors) with jQuery
...pt with the jQuery library to manipulate image thumbnails contained in a unordered list. When the image is loaded it does one thing, when an error occurs it does something else. I'm using jQuery load() and error() methods as events. After these events I check the image DOM element for the .comp...
What is Dispatcher Servlet in Spring?
...ontrollers and DispatcherServlet refers to one of the following mappers in order to determine the target controller:
BeanNameUrlHandlerMapping;
ControllerBeanNameHandlerMapping;
ControllerClassNameHandlerMapping;
DefaultAnnotationHandlerMapping;
SimpleUrlHandlerMapping.
If no configuration is pe...
Ansible: Set variable to file content
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You can use lookups in Ansible in order to get the contents of a file, e.g.
user_data: "{{ lookup('file', user_data_file) }}"
Caveat: This lookup will work with local files, not remote files.
Here's a complete example from the docs:
- hosts: all
vars:
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Disabling swap files creation in vim
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You can set backupdir and directory to null in order to completely disable your swap files, but it is generally recommended to simply put them in a centralized directory. Vim takes care of making sure that there aren't name collissions or anything like that; so, this is a...
C/C++ check if one bit is set in, i.e. int variable
...:
However, bit members in structs have practical drawbacks. First, the ordering of bits in memory is architecture dependent and memory padding rules varies from compiler to compiler. In addition, many popular compilers generate inefficient code for reading and writing bit members, and there are ...
Java logical operator short-circuiting
...when the right-hand operand depends on the left one being true or false in order to function properly.
For example, the following code fragment shows how you can take advantage of short-circuit logical evaluation to be sure that a division operation will be valid before evaluating it:
if ( denom !...
How to detect if app is being built for device or simulator in Swift
...e expression the compiler will raise a warning about unreachable code.
In order to work around this warning, see one of the other answers.
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