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What does the Ellipsis object do?
... object that can appear in slice notation. For example:
myList[1:2, ..., 0]
Its interpretation is purely up to whatever implements the __getitem__ function and sees Ellipsis objects there, but its main (and intended) use is in the numpy third-party library, which adds a multidimensional array ty...
How do I obtain the frequencies of each value in an FFT?
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The first bin in the FFT is DC (0 Hz), the second bin is Fs / N, where Fs is the sample rate and N is the size of the FFT. The next bin is 2 * Fs / N. To express this in general terms, the nth bin is n * Fs / N.
So if your sample rate, Fs is say 44.1 kHz a...
How can I see the request headers made by curl when sending a request to the server?
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I think curl -v is the easiest. It will spit out the request headers (lines prefixed with '>'...
How to position a table at the center of div horizontally & vertically
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Centering is one of the biggest issues in CSS. However, some tricks exist:
To center your table...
Update a record without first querying?
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answered Nov 18 '10 at 19:15
CD..CD..
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Converting a string to a date in JavaScript
...omputations as UTC.
To parse a date as UTC, append a Z - e.g.: new Date('2011-04-11T10:20:30Z').
To display a date in UTC, use .toUTCString(),
to display a date in user's local time, use .toString().
More info on MDN | Date and this answer.
For old Internet Explorer compatibility (IE versions le...
javascript toISOString() ignores timezone offset [duplicate]
...llowing works as well:
var tzoffset = (new Date()).getTimezoneOffset() * 60000; //offset in milliseconds
var localISOTime = (new Date(Date.now() - tzoffset)).toISOString().slice(0, -1);
// => '2015-01-26T06:40:36.181'
The slice(0, -1) gets rid of the trailing Z which represents Zulu timezone a...
Node.js get file extension
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edited Apr 26 '13 at 7:10
Tim Santeford
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answ...
Inner text shadow with CSS
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Here's a little trick I discovered using the :before and :after pseudo-elements:
.depth {
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How to get the integer value of day of week
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it will return 0 for monday and so on ?
– akshaykumar6
Feb 8 '12 at 18:23
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