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C++ const map element access
...s if an element with the given key does not exist, it throws a std::out_of_range exception. (This is similar to the behaviour of at() for deque and vector.)
Because of this behaviour it makes sense for there to be a const overload of at(), unlike operator[] which always has the potential to change ...
In Python, how do you convert seconds since epoch to a `datetime` object?
...s say this:
"This may raise ValueError, if the timestamp is out of the range of
values supported by the platform C gmtime() function. It’s common for
this to be restricted to years in 1970 through 2038"
See also Issue1646728
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How to unzip a file using the command line? [closed]
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7-Zip, it's open source, free and supports a wide range of formats.
7z.exe x myarchive.zip
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How to save as a new file and keep working on the original one in Vim?
...} So, :sav is the shortener for :saveas. Whereas, :w is the shortcut for :[range]w[rite][!] [++opt] {file}. And everything is in the manual, just few lines above/below.
– Atcold
Oct 20 '14 at 19:22
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Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...ed (e.g. Windows, graphics, printing, communications, etc) to write a vast range of applications - so one "library" provides support for pretty much everything you need to do. Often a framework supplies a complete base on which you build your own code, rather than you building an application that co...
How can I map True/False to 1/0 in a Pandas DataFrame?
...rectly on Frames
In [104]: df = DataFrame(dict(A = True, B = False),index=range(3))
In [105]: df
Out[105]:
A B
0 True False
1 True False
2 True False
In [106]: df.dtypes
Out[106]:
A bool
B bool
dtype: object
In [107]: df.astype(int)
Out[107]:
A B
0 1 0
1 1 0
2 ...
How can I prevent the backspace key from navigating back?
...email", "number", "date", "color", "datetime", "datetime-local", "month", "range", "search", "tel", "time", "url", "week"];
var d = $(event.srcElement || event.target);
var disabled = d.prop("readonly") || d.prop("disabled");
if (!disabled) {
if (d[0].isContentEdi...
Going to a specific line number using Less in Unix
... '320123'p filename
This will print line number 320123.
If you want a range then you can do -
sed -n '320123,320150'p filename
If you want from a particular line to the very end then -
sed -n '320123,$'p filename
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How best to determine if an argument is not sent to the JavaScript function
...ethod is ideal - indeed, it is often used to quickly eliminate such a wide range of values from consideration.
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Calculate last day of month in JavaScript
...ues as mine for years 1-4000. jsfiddle.net/2973x9m3/3 What additional date range are you claiming this will support (that would be of use)? :)
– Gone Coding
Feb 23 '15 at 20:04
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