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Add list to set?
...mutable, meaning that you can change the contents of the list after adding it to the set.
You can however add tuples to the set, because you cannot change the contents of a tuple:
>>> a.add(('f', 'g'))
>>> print a
set(['a', 'c', 'b', 'e', 'd', ('f', 'g')])
Edit: some explanat...
How to programmatically send a 404 response with Express/Node?
...'s a dedicated status function for this on the response object. Just chain it in somewhere before you call send.
res.status(404) // HTTP status 404: NotFound
.send('Not found');
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Check if SQL Connection is Open or Closed
How do you check if it is open or closed I was using
9 Answers
9
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Array.push() if does not exist?
How can I push into an array if neither values exist? Here is my array:
23 Answers
23
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Looping through localStorage in HTML5 and JavaScript
...as thinking I could just loop through localStorage like a normal object as it has a length. How can I loop through this?
7 ...
Convert form data to JavaScript object with jQuery
...dden fields which have the same name as real inputs as they will get overwritten.
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Is there a performance difference between i++ and ++i in C++?
...f you don't have a specific reason to use i++.]
For C++, the answer is a bit more complicated.
If i is a simple type (not an instance of a C++ class), then the answer given for C ("No there is no performance difference") holds, since the compiler is generating the code.
However, if i is an instan...
How can you profile a Python script?
...m time to run or people boast of how fast their particular solution runs. With Python, sometimes the approaches are somewhat kludgey - i.e., adding timing code to __main__ .
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Post JSON using Python Requests
...nwards, you can alternatively use 'json' parameter in the call which makes it simpler.
>>> import requests
>>> r = requests.post('http://httpbin.org/post', json={"key": "value"})
>>> r.status_code
200
>>> r.json()
{'args': {},
'data': '{"key": "value"}',
'files...
HTML anchor link - href and onclick both?
...tes some JavaScript and then proceeds to go wherever the href was taking it. Invoking a function that executes my JavaScript and then sets window.location or top.location to the href location doesn't work for me.
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