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How do I Search/Find and Replace in a standard string?
... to )
{
return std::regex_replace( in, std::regex(from), to );
}
string test = "Remove all spaces";
std::cout << do_replace(test, " ", "") << std::endl;
output:
Removeallspaces
share
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Check if a value exists in pandas dataframe index
...d with column headings rather than an index, e.g.: df = pandas.DataFrame({'test':[1,2,3,4]}, columns=['a','b','c','d'])
– Tahlor
Jun 22 '18 at 14:54
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了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...) 的形式返回给定文件名的扩展名。例如，对于文件名为 test.cpp 的文件，extension 将返回 .cpp。对于文件没有扩展名的情况，此函数将返回空字符串。对于隐藏文件（即 UNIX 系统中文件名以 . 开始的文件），此函数将相应地计算扩...
How to link to apps on the app store
...
This should be tested on a real device.
– Protocole
Feb 7 '12 at 9:31
7
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What are the differences between Autotools, Cmake and Scons?
... ARCANE m4 macro syntax combined with verbose, twisted shell scripting for tests for "compatibility", etc.
If you're not paying attention, you will mess up cross-compilation ability (It
should clearly be noted that Nokia came up with Scratchbox/Scratchbox2 to side-step highly broken Autotools build ...
Adding a background image to a element
...
Use like ..
<div style="background-image: url(../images/test-background.gif); height: 200px; width: 400px; border: 1px solid black;">Example of a DIV element with a background image:</div>
<div style="background-image: url(../images/test-background.gif); height: 200px;...
How to organize large R programs?
...nterface
a lot of sanity checks via R CMD check
a chance to add regression tests
as well as a means for namespaces.
Just running source() over code works for really short snippets. Everything else should be in a package -- even if you do not plan to publish it as you can write internal packages fo...
How to remove all line breaks from a string
...plest solution would be:
let str = '\t\n\r this \n \t \r is \r a \n test \t \r \n';
str.replace(/\s+/g, ' ').trim();
console.log(str); // logs: "this is a test"
.replace() with /\s+/g regexp is changing all groups of white-spaces characters to a single space in the whole string then we .tr...
Entity Framework. Delete all rows in table
... not SQL Engine(R/DBM) specific.
This assumes that you're doing this for testing or some similar situation.
Either
The amount of data is small or
The performance doesn't matter
Simply call:
VotingContext.Votes.RemoveRange(VotingContext.Votes);
Assuming this context:
public class Votin...
What is the “hasClass” function with plain JavaScript?
...Query's implementation is better and more reliable. For example: /\bbig\b/.test('big-text') returns true instead of expected false.
– Stano
Jun 18 '13 at 18:43
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