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How to remove the first Item from a list?
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Python List
list.pop(index)
>>> l = ['a', 'b', 'c', 'd']
>>> l.pop(0)
'a'
>>> l
['b', 'c', 'd']
>>>
del list[index]
>>> l = ['a', 'b', 'c', 'd']
>>> del l[0]
>>> l
['b', 'c', 'd']
&g...
PHP function to get the subdomain of a URL
...hen dealing with co.uk, for example, it does not. As seen here This is actually a harder problem to solve.
– Mike Lewis
Mar 13 '11 at 23:12
2
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How do I measure request and response times at once using cURL?
...me="curl -w \"@$HOME/.curl-format.txt\" -o NUL -s "
Then you can simply call...
curltime wordpress.org
Thanks to commenter Pete Doyle!
Make a Linux/Mac stand-alone script
This script does not require a separate .txt file to contain the formatting.
Create a new file, curltime, somewhere in ...
When should you use a class vs a struct in C++?
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A struct with no modifiers or methods is called a POD struct, which exists as a backwards compatible interface with C libraries as it is (supposedly) guaranteed to be laid out as though it were a C struct. Apart from this one exception though, the only difference is ...
Is Hash Rocket deprecated?
... I can't find any definitive reference stating the Hash Rocket form is actually deprecated/unadvised as of Ruby 1.9.
1 Answ...
C++ stl stack/queue 的使用方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
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stack<string> s2;
stack 的基本操作有：
入栈，如例：s.push(x);
出栈，如例：s.pop(); 注意，出栈操作只是删除栈顶元素，并不返回该元素，使用top()访问元素。
访问栈顶，如例：s.top()
判断栈空，如例：s.empty()，当栈空时，返回tru...
What do the f and t commands do in Vim?
... information but people keep telling me that they are very useful. Would really appreciate an answer with an example if possible, thanks!
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MySQL check if a table exists without throwing an exception
...PDO syntax for it, but this seems pretty straight-forward:
$result = mysql_query("SHOW TABLES LIKE 'myTable'");
$tableExists = mysql_num_rows($result) > 0;
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How do I determine which iOS SDK I have?
..., but how do I determine which version of the iOS SDK I currently have installed?
5 Answers
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Find a pair of elements from an array whose sum equals a given number
Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X.
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