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How do I create a class instance from a string name in ruby?
I have the name of a class and I want to create an instance of that class so that I can loop through each rails attribute that is present in the schema of that class.
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how do I insert a column at a specific column index in pandas?
Can I insert a column at a specific column index in pandas?
4 Answers
4
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SQL exclude a column using SELECT * [except columnA] FROM tableA?
...t needed */
ALTER TABLE #TempTable
DROP COLUMN ColumnToDrop
/* Get results and drop temp table */
SELECT * FROM #TempTable
DROP TABLE #TempTable
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Filter Fiddler traffic
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Unfortunately, it has bugs that Telerik as aware of and choosing not to fix, so you will still get unwanted noise. Please help me shame them into doing something about it.
– Maxx
Jan 24 '19 at 22:45
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Get position of UIView in respect to its superview's superview
...c to the button in the hierarchy as asked I found this easier to visualize and understand:
From here: original source
ObjC:
CGPoint point = [subview1 convertPoint:subview2.frame.origin toView:viewController.view];
Swift:
let point = subview1.convert(subview2.frame.origin, to: viewControll.v...
Passport.js - Error: failed to serialize user into session
I got a problem with the Passport.js module and Express.js.
6 Answers
6
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Pandas get topmost n records within each group
Suppose I have pandas DataFrame like this:
3 Answers
3
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Implementing slicing in __getitem__
... a slice object when the object is sliced. Simply look at the start, stop, and step members of the slice object in order to get the components for the slice.
>>> class C(object):
... def __getitem__(self, val):
... print val
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>>> c = C()
>>> c[3]
3
>>> ...
How does a Linux/Unix Bash script know its own PID?
I have a script in Bash called Script.sh , and it needs to know its own PID (i.e. I need to get PID inside the Script.sh )
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Javascript Array of Functions
..._function,
second_function,
third_function,
forth_function
]
and then when you want to execute a given function in the array:
array_of_functions[0]('a string');
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