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Differences in string compare methods in C#
...on is the following will throw an exception:
string a = null;
string b = "foo";
bool equal = a.Equals(b);
And the following will not:
string a = null;
string b = "foo";
bool equal = a == b;
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How to sort a list/tuple of lists/tuples by the element at a given index?
I have some data either in a list of lists or a list of tuples, like this:
10 Answers
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Why is jquery's .ajax() method not sending my session cookie?
...s: Access-Control-Allow-Origin: *
So when the request is:
Origin: http://foo.example
Cookie: pageAccess=2
Server should respond with:
Access-Control-Allow-Origin: http://foo.example
Access-Control-Allow-Credentials: true
[payload]
Otherwise payload won't be returned to script. See: https://d...
How do I check if a file exists in Java?
The only similar question on SO deals with writing the file and was thus answered using FileWriter which is obviously not applicable here.
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程序员之网络安全系列（三）：数据加密之对称加密算法 - 更多技术 - 清泛网...
...行编码和解码的一种算法。
举个例子：
假设我们要对LOVE加密，我们可以先定义字母的顺序ABCDEFGHIJKLMNOPQRSTUVWXYZ，然后我们让每个字母向后移动两位，那么LOVE就变为了NQXG
L------>N
O------>Q
V------>X
E------>
LOVE--->NQXG
我想这就...
Cancel split window in Vim
I have split my windows horizontally. Now how can I return to normal mode, i.e. no split window just one window without cancelling all of my open windows. I have 5 and do not want to "quit", just want to get out of split window.
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Eclipse add Tomcat 7 blank server name
I was trying to add Tomcat 7 in my Eclipse in Ubuntu. When I click "Add new server" in Eclipse and select "Tomcat v7.0 Server", the field "Server Name" is blank and I cannot type in anything in that textbox as shown below:
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How do you copy and paste into Git Bash
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How do I retrieve an HTML element's actual width and height?
...y belong to the element, not .style.
var width = document.getElementById('foo').offsetWidth;
Function .getBoundingClientRect() returns dimensions and location of element as floating-point numbers after performing CSS transforms.
> console.log(document.getElementById('id').getBoundingClientRect...
How do I enable standard copy paste for a TextView in Android?
I want to enable standard copy paste for a TextView (the same as for EditText). How can I do it?
9 Answers
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