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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
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165
Should look like this:
class Number
{
public:
Number& operator++ () // p...
How to get the start time of a long-running Linux process?
...,lstart,cmd
PID CMD STARTED
1 Tue Jun 7 01:29:38 2016 /sbin/init
2 Tue Jun 7 01:29:38 2016 [kthreadd]
3 Tue Jun 7 01:29:38 2016 [ksoftirqd/0]
5 Tue Jun 7 01:29:38 2016 [kworker/0:0H] ...
Margin-Top not working for span element?
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311
Unlike div, p 1 which are Block Level elements which can take up margin on all sides,span2 cann...
How to merge YAML arrays?
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answered Jul 25 '19 at 19:38
Jorge LeitaoJorge Leitao
13.4k1414 gold badges7171 silver badges101101 bronze badges
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Get all attributes of an element using jQuery
...s, arguments);
};
})($.fn.attr);
Usage:
var $div = $("<div data-a='1' id='b'>");
$div.attr(); // { "data-a": "1", "id": "b" }
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How to rotate the background image in the container?
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142
Very well done and answered here -
http://www.sitepoint.com/css3-transform-background-image/
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Remove NA values from a vector
..., etc.)
Setting na.rm=TRUE does just what you're asking for:
d <- c(1, 100, NA, 10)
max(d, na.rm=TRUE)
If you do want to remove all of the NAs, use this idiom instead:
d <- d[!is.na(d)]
A final note: Other functions (e.g. table(), lm(), and sort()) have NA-related arguments that use d...
Efficient evaluation of a function at every cell of a NumPy array
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164
You could just vectorize the function and then apply it directly to a Numpy array each time yo...
Difference between timestamps with/without time zone in PostgreSQL
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162
The differences are covered at the PostgreSQL documentation for date/time types. Yes, the trea...
Infinite scrolling with React JS
...nd = Math.min(visibleStart + this.state.recordsPerBody, this.state.total - 1);
var displayStart = Math.max(0, Math.floor(scroll / this.state.recordHeight) - this.state.recordsPerBody * 1.5);
var displayEnd = Math.min(displayStart + 4 * this.state.recordsPerBody, this.state.total - 1);
...