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How to check if an int is a null
.... you need to do
if (person != null){ // checks if person is not null
}
and
if(person.equals(null))
The above code would throw NullPointerException when person is null.
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CSS attribute selector does not work a href
I need to use attribute selector in css to change link on different color and image, but it does not work.
2 Answers
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Setting the Vim background colors
... change the background colors in .vimrc or directly in Vim using the command:
4 Answers
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How to create multiple directories from a single full path in C#?
...parent directories do not exist.
In MSDN's words, Creates all directories and subdirectories as specified by path.
If the entire path already exists, it will do nothing. (It won't throw an exception)
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What's the difference between StaticResource and DynamicResource in WPF?
When using resources such as brushes, templates and styles in WPF, they can be specified either as StaticResources
8 Answe...
Convert string to variable name in JavaScript
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@WojciechBednarski: Don't confuse scope and context. this is context, what it points to depends on how the function is called. In JS, 50% of the time this is window unless you enable strict mode and this becomes undefined and will throw an error. Scope is something...
How to print a number with commas as thousands separators in JavaScript
I am trying to print an integer in JavaScript with commas as thousands separators. For example, I want to show the number 1234567 as "1,234,567". How would I go about doing this?
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How to execute ipdb.set_trace() at will while running pytest tests
...my_test.py --pdb --pdbcls=IPython.terminal.debugger:Pdb
From the help command:
pytest -h
--pdb start the interactive Python debugger on errors.
--pdbcls=modulename:classname
start a custom interactive Python debugger on errors.
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LINQ Group By into a Dictionary Object
...okup(customObject => customObject);
Basically, it takes the IGrouping and materializes it for you into a dictionary of lists, with the values of PropertyName as the key.
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How to delete all data from solr and hbase
How do I delete all data from solr by command? We are using solr with lily and hbase .
18 Answers
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