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Why are there two kinds of functions in Elixir?
I'm learning Elixir and wonder why it has two types of function definitions:
8 Answers
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How do I compute derivative using Numpy?
How do I calculate the derivative of a function, for example
8 Answers
8
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List all developers on a project in Git
...committer and author), you could use git log:
git log --pretty="%an %ae%n%cn %ce" | sort | uniq
%an author name
%ae author email
%n new line
%cn committer name
%ce committer email
Other placeholders are described in the pretty print documentation of git log.
...
How to sum a variable by group
...
Using aggregate:
aggregate(x$Frequency, by=list(Category=x$Category), FUN=sum)
Category x
1 First 30
2 Second 5
3 Third 34
In the example above, multiple dimensions can be specified in the list. Multiple aggregated metrics of the same data type can be incorporated via cbind:
ag...
How does the “this” keyword work?
...t("I'm evaluated in the initial global execution context!");
setTimeout(function () {
alert("I'm NOT evaluated in the initial global execution context.");
}, 1);
</script>
When evaluating code in the initial global execution context, ThisBinding is set to the global object, window ...
Undefined, unspecified and implementation-defined behavior
...tandard as unspecified (for example, order of evaluation of arguments to a function). Where possible, this International Standard defines a set of allowable behaviors. These define the nondeterministic aspects of the abstract machine.
Certain other operations are described in this International Stan...
https connection using CURL from command line
...ificate:
* subject: C=US; ST=California; L=Mountain View; O=Google Inc; CN=www.google.com
* start date: 2016-01-07 11:34:33 GMT
* expire date: 2016-04-06 00:00:00 GMT
* issuer: C=US; O=Google Inc; CN=Google Internet Authority G2
* SSL certificate verify ok.
* Server GFE/2.0 is not bla...
Load RSA public key from file
...ce;
}
/**
* Returns a CSR as string
* @param cn Common Name
* @param OU Organizational Unit
* @param Org Organization
* @param LocName Location name
* @param Statename State/Territory/Province/Region
* @param Country Country
*...
Should I Dispose() DataSet and DataTable?
... lot of folks use a using statement for IDisposables. using (SqlConnection cn = new SqlConnection(connectionString)) { using (SqlCommand cm = new SqlCommand(commandString, cn)) { cn.Open(); cm.ExecuteNonQuery(); } }
– DOK
May 19 '14 at 16:07
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C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ack(RCSPW(new Widget));
...
v.erase(remove_if(v.begin(),v.end(),not1(mem_fun(&Widget::isCertified))),v.end());
第34条：了解哪些算法要求使用排序的区间作为参数。
下面的代码要求排序的区间：
binary_search lower_bound
upper_bound equal_range
set_union set_...