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How do I loop through a list by twos? [duplicate]
...u can use for in range with a step size of 2:
Python 2
for i in xrange(0,10,2):
print(i)
Python 3
for i in range(0,10,2):
print(i)
Note: Use xrange in Python 2 instead of range because it is more efficient as it generates an iterable object, and not the whole list.
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PHP Replace last occurrence of a String in a String?
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14 Answers
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Java String split removed empty values
... with limit set to negative value like
String[] split = data.split("\\|", -1);
Little more details:
split(regex) internally returns result of split(regex, 0) and in documentation of this method you can find (emphasis mine)
The limit parameter controls the number of times the pattern is applied and...
What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...t means that first element has index 0 and last element has index Length - 1 (where Length is total number of items in the array) so this code doesn't work:
array[array.Length] = 0;
Moreover please note that if you have a multidimensional array then you can't use Array.Length for both dimension, ...
Insert, on duplicate update in PostgreSQL?
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16 Answers
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How do I check if there are duplicates in a flat list?
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14 Answers
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How to customize the background/border colors of a grouped table view cell?
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11 Answers
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In javascript, is an empty string always false as a boolean?
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196
Yes. Javascript is a dialect of ECMAScript, and ECMAScript language specification clearly defi...
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_...