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How do I check in JavaScript if a value exists at a certain array index?
...y, arrays in JavaScript contain array.length elements, starting with array[0] up until array[array.length - 1]. An array element with index i is defined to be part of the array if i is between 0 and array.length - 1 inclusive. If i is not in this range it's not in the array.
So by concept, arrays...
Why does the MongoDB Java driver use a random number generator in a conditional?
...hat this piece of code amounts to
if (!_ok && Math.random() <= 0.1)
return res;
The commit that originally introduced this logic had
if (_ok == true) {
_logger.log( Level.WARNING , "Server seen down: " + _addr, e );
} else if (Math.random() < 0.1) {
_logger.log( Level.WARNING ...
CSS background opacity with rgba not working in IE 8
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Daniel Mendel
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answered Oct 20 '10 at 7:44
MatTheCatMatTheCat
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Alter column, add default constraint
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answered Jan 19 '10 at 17:07
SQLMenaceSQLMenace
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Rails migrations: Undo default setting for a column
...shua Pinter
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answered Nov 17 '09 at 2:36
Jeremy MackJeremy Mack
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Set folder browser dialog start location
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answered May 10 '09 at 0:39
great_llamagreat_llama
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How to change the default font size in ggplot2
...
Use theme_set()
theme_set(theme_gray(base_size = 18))
qplot(1:10, 1:10)
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How to revert a Git Submodule pointer to the commit stored in the containing repository?
... |
edited Sep 15 at 1:10
answered Oct 24 '11 at 23:28
Br...
Sending “User-agent” using Requests library in Python
...requests
url = 'SOME URL'
headers = {
'User-Agent': 'My User Agent 1.0',
'From': 'youremail@domain.com' # This is another valid field
}
response = requests.get(url, headers=headers)
If you're using requests v2.12.x and older
Older versions of requests clobbered default headers, so you...
dynamically add and remove view to viewpager
...al number of pages that the ViewPage can display. This must
// never be 0.
@Override
public int getCount ()
{
return views.size();
}
//-----------------------------------------------------------------------------
// Used by ViewPager.
@Override
public boolean isViewFromObject...