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How does the Java 'for each' loop work?
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1193
for (Iterator<String> i = someIterable.iterator(); i.hasNext();) {
String item = i....
Is returning by rvalue reference more efficient?
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Beta_ab&&
Beta::toAB() const {
return move(Beta_ab(1, 1));
}
This returns a dangling reference, just like with the lvalue reference case. After the function returns, the temporary object will get destructed. You should return Beta_ab by value, like the following
Beta_ab...
jQuery How to Get Element's Margin and Padding?
...atted total padding and margin etc ? i.e. 30px 30px 30px 30px or 30px 5px 15px 30px etc
8 Answers
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how do you filter pandas dataframes by multiple columns
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176
Using & operator, don't forget to wrap the sub-statements with ():
males = df[(df[Gender]...
How does tuple comparison work in Python?
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196
Tuples are compared position by position:
the first item of the first tuple is compared to the...
How do I make jQuery wait for an Ajax call to finish before it returns?
...ion that requires login. If the user is logged in the function will return 1 on success. If not, the function will return the login-page.
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Why prefer two's complement over sign-and-magnitude for signed numbers?
I'm just curious if there's a reason why in order to represent -1 in binary, two's complement is used: flipping the bits and adding 1?
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runOnUiThread in fragment
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Try this: getActivity().runOnUiThread(new Runnable...
It's because:
1) the implicit this in your call to runOnUiThread is referring to AsyncTask, not your fragment.
2) Fragment doesn't have runOnUiThread.
However, Activity does.
Note that Activity just executes the Runnable if you're alrea...
How to use CURL via a proxy?
... your bugs removed.
$url = 'http://dynupdate.no-ip.com/ip.php';
$proxy = '127.0.0.1:8888';
//$proxyauth = 'user:password';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
//curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyauth);
curl_setopt($ch, CURLOPT_...