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What are some better ways to avoid the do-while(0); hack in C++?
...lse, which reduces readability. It might end up with dozens of parameters, then, because having dozens of parameters is a bad thing, you'll decide to wrap them into struct, which will create new data type. Too much typing for a simple situation.
– SigTerm
Aug 2...
How to make a class JSON serializable
...n merely call json.dumps(f.__dict__).
If you want more customized output then you will have to subclass JSONEncoder and implement your own custom serialization.
For a trivial example, see below.
>>> from json import JSONEncoder
>>> class MyEncoder(JSONEncoder):
def def...
How can I add a string to the end of each line in Vim?
...nd press :, this will pre-fill the command with :'<,'> which you can then make into :'<,'>norm A*
– Jedidiah Hurt
Oct 13 '11 at 21:53
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How to read a .xlsx file using the pandas Library in iPython?
...re right, it's pretty similar to mysql. It involved creating an engine and then gathering the metadata and playing around with the data. Thanks again Andy! :) Appreciate the help.
– Sabareesh Kappagantu
Jun 4 '13 at 22:51
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Java Constructor Inheritance
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Suppose constructors were inherited... then because every class eventually derives from Object, every class would end up with a parameterless constructor. That's a bad idea. What exactly would you expect:
FileInputStream stream = new FileInputStream();
to do?
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Print all but the first three columns
...ast). +1 for the answer itself using the nice trick to loop up to NF-1 and then printing the last element to avoid the extra whitespace. And sorry again! (will remove my comment in a day or so, to prevent misunderstandings from future readers).
– fedorqui 'SO stop harming'
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Find unused npm packages in package.json
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If you're using a Unix like OS (Linux, OSX, etc) then you can use a combination of find and egrep to search for require statements containing your package name:
find . -path ./node_modules -prune -o -name "*.js" -exec egrep -ni 'name-of-package' {} \;
If you search for t...
Vim: faster way to select blocks of text in visual mode
...d I want to select to line 35, I might press ma to place mark a on line 5, then :35 to move to line 35. Shift + v to enter linewise visual mode, and finally `a to select back to mark a.
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impr...
Get URL query string parameters
...s the code vulnerable to attacks such as http://www.example.com/page.php?authenticated=1.
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Sort Go map values by keys
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This can be improved with keys := make([]int, len(m)) and then insert by index keys[i] = k instead of append
– jpillora
Sep 9 '14 at 0:42
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