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Adding a background image to a element
... like position, attachament
background CSS Property is a connection of all background-xxx propieties in that syntax:
background:
background-color
background-image
background-repeat
background-attachment
background-position;
Source: w3schools
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String formatting named parameters?
I know it's a really simple question, but I have no idea how to google it.
6 Answers
6...
Remove an entire column from a data.frame in R
...u could do
Data <- subset( Data, select = -c(d, b ) )
You can remove all columns between d and b with:
Data <- subset( Data, select = -c( d : b )
As I said above, this syntax works only when the column names are known. It won't work when say the column names are determined programmatical...
How do short URLs services work?
... site that is redirected to will see the referrer (the site that you originally come from) as being the site the TinyUrl link is on (i.e., twitter.com, your own site, wherever the link is). This is just as important, so that site owners can see where people are coming from. This too, would not work ...
What is for Python what 'explode' is for PHP?
...miter present (except possibly the last part). When the delimiter is None, all whitespace is matched. This is the default.
>>> "Rajasekar SP".split()
['Rajasekar', 'SP']
>>> "Rajasekar SP".split('a',2)
['R','j','sekar SP']
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How to comment a block in Eclipse?
...t-\ in that case.
EDIT: It's Ctrl on a PC, but on a Mac the shortcuts may all be Cmd instead. I don't have a Mac myself, so can't easily check.
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How to check if any flags of a flag combination are set?
...d point... and enums also implement IFormattable and IComparable. However, all numeric types implement those interfaces too, so it's not enough to exclude them
– Thomas Levesque
Apr 20 '12 at 23:09
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Given the lat/long coordinates, how can we find out the city/country?
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Google's reverse geocoding is only allowed in conjunction with a Google Map. If you want a solution that has no such restrictions (though it is commercial and only has US cities), check out: askgeo.com
– James D
May 8 '12...
How to calculate the angle between a line and the horizontal axis?
...2(deltaY, deltaX) * 180 / PI
EDIT (Feb. 22, 2017): In general, however, calling atan2(deltaY,deltaX) just to get the proper angle for cos and sin may be inelegant. In those cases, you can often do the following instead:
Treat (deltaX, deltaY) as a vector.
Normalize that vector to a unit vector. ...
Is there a difference between `continue` and `pass` in a for loop in python?
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i m totally agree with your answer. but i have still question regarding pass keyword is it needed ? and needed but why ? Thank You
– Hardik Gajjar
Nov 9 '15 at 2:52
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