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How to use JavaScript regex over multiple lines?
...t just means a literal .. (.|\n) would be a way to specify "any character, including a newline". If you want to match all newlines, you would need to add \r as well to include Windows and classic Mac OS style line endings: (.|[\r\n]).
That turns out to be somewhat cumbersome, as well as slow, (see ...
Get current stack trace in Ruby without raising an exception
... No, technically caller is an instance method. Since Kernel module is included in every Ruby class (except BasicObject in 1.9), it's available as instance method on any object (it's private, though). You can't call it as Kernel.new.caller simply because you can't instantiate a module (it doesn'...
How do I escape characters in c# comments?
...ith //). If you are using XML comments then you can use a CDATA section to include '<' and '>' characters.
See this MSDN blog article for more information on XML comments in C#.
For example
/// <summary>
/// Here is how to use the class: <![CDATA[ <test>Data</test> ]]...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...认的工作方式，要使用WTL 7的消息处理方式，你必须在中including atldlgs.h一行之前添加一行定义：
#define _WTL_NEW_PAGE_NOTIFY_HANDLERS
编写新的代码没有理由不使用WTL 7的消息处理函数，所以这里就不介绍WTL 3的消息处理方式。
CPropertyP...
uint8_t can't be printed with cout
...
Making use of ADL (Argument-dependent name lookup):
#include <cstdint>
#include <iostream>
#include <typeinfo>
namespace numerical_chars {
inline std::ostream &operator<<(std::ostream &os, char c) {
return std::is_signed<char>::value ?...
Disable a method in a ViewSet, django-rest-framework
... ...
With this approach, the router should only generate routes for the included methods.
Reference:
ModelViewSet
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How do I run a Node.js application as its own process?
...s is taken from How we deploy node apps on Linux, 2018 edition, which also includes commands to generate an AWS/DigitalOcean/Azure CloudConfig to build Linux/node servers (including the .service file).
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How do I write a “tab” in Python?
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The Python reference manual includes several string literals that can be used in a string. These special sequences of characters are replaced by the intended meaning of the escape sequence.
Here is a table of some of the more useful escape sequences a...
Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...ns is to insert indicator variables in each data.frame and then merge:
a1$included_a1 <- TRUE
a2$included_a2 <- TRUE
res <- merge(a1, a2, all=TRUE)
missing values in included_a1 will note which rows are missing in a1. similarly for a2.
One problem with your solution is that the column o...
How to remove all the occurrences of a char in c++ string
... erase.
See this question which answers the same problem. In your case:
#include <algorithm>
str.erase(std::remove(str.begin(), str.end(), 'a'), str.end());
Or use boost if that's an option for you, like:
#include <boost/algorithm/string.hpp>
boost::erase_all(str, "a");
All of thi...