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Regular Expression to reformat a US phone number in Javascript
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233
Assuming you want the format "(123) 456-7890":
function formatPhoneNumber(phoneNumberString) {...
Divide a number by 3 without using *, /, +, -, % operators
How would you divide a number by 3 without using * , / , + , - , % , operators?
48 Answers
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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
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2343
The *args and **kwargs is a common idiom to allow arbitrary number of arguments to functions a...
[since C++11] std::array的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...类、没有虚函数.
因此不支持这样的构造方法：array<int, 3> a({1, 2, 4});
初始化array最常用的方法是使用赋值运算符和初始化列表：
array<int, 3> a = {1, 2, 3};
array<int, 100> b = {1, 2, 3}; // a[0] ~ a[2] = 1, 2, 3; a[3] ~ a[99] = 0, 0, 0 ... 0;
array<in...
StringIO in Python3
I am using Python 3.2.1 and I can't import the StringIO module. I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
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Output data from all columns in a dataframe in pandas [duplicate]
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Erel Segal-Halevi
23.9k2424 gold badges8686 silver badges141141 bronze badges
answered Nov 5 '12 at 18:13
YarivYariv
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Get the cartesian product of a series of lists?
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13 Answers
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How do you rotate a two dimensional array?
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63 Answers
63
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Can't install Ruby under Lion with RVM – GCC issues
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553
This answer was edited multiple times and now contains several alternative solutions. Try the...
Regular expression to match standard 10 digit phone number
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^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]\d{3}[\s.-]\d{4}$
Matches the following
123-456-7890
(123) 456-7890
123 456 7890
123.456.7890
+91 (123) 456-7890
If you do not want a match on non-US numbers use
^(\+0?1\s)?\(?\d{3}\)?[\s.-]\d{3}[\s.-]\d{4}$
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