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Best way to repeat a character in C#
...
string.Concat(Enumerable.Repeat("ab", 2));
Returns
"abab"
And
string.Concat(Enumerable.Repeat("a", 2));
Returns
"aa"
from...
Is there a built-in function to repeat string or char in .net?
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How to sort a Ruby Hash by number value?
...e your code to:
metrics.sort {|a1,a2| a2[1].to_i <=> a1[1].to_i }
Converted to strings along the way or not, this will do the job.
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foll...
Why malloc+memset is slower than calloc?
...se it can skip memset() entirely. In other cases, calloc() can even cheat and not allocate any memory! However, malloc()+memset() will always do the full amount of work.
Understanding this requires a short tour of the memory system.
Quick tour of memory
There are four main parts here: your prog...
What exactly do “u” and “r” string flags do, and what are raw string literals?
...slashes are literal backslashes, not part of escape codes.
You can try to convert a Unicode string to an old string using the str() function, but if there are any unicode characters that cannot be represented in the old string, you will get an exception. You could replace them with question marks f...
How do I suspend painting for a control and its children?
...ke to completely prevent it from redrawing while I do that - SuspendLayout and ResumeLayout aren't enough. How do I suspend painting for a control and its children?
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How do I define a method in Razor?
...cality. MVC isn't the only game in town. Some folks just like simple razor and URLRewrite as MVC is a lot to do for little benefit IMO
– Jason Sebring
Oct 28 '12 at 18:00
5
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数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...民共和国
normalDict.add("中华人民共和国");
int strLen = str.length(); //传入字符串的长度
int j = 0;
String matchWord = ""; //根据词库里识别出来的词
int matchPos = 0; //根据词库里识别出来词后当前句子中的位...
For loop example in MySQL
...ile v_counter < v_max do
insert into foo (val) values ( floor(0 + (rand() * 65535)) );
set v_counter=v_counter+1;
end while;
commit;
end #
delimiter ;
call load_foo_test_data();
select * from foo order by id;
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Setting Vim whitespace preferences by filetype
...er that. Of course, if expandtab is on, all the tabs that get inserted are converted to spaces. stackoverflow.com/questions/1562336/… might help further. Without expand tab, Peter's answer would insert tabs that are 2 chars wide, not spaces.
– ajmccluskey
Ap...
Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...nst hashBuffer = await crypto.subtle.digest('SHA-256', msgBuffer);
// convert ArrayBuffer to Array
const hashArray = Array.from(new Uint8Array(hashBuffer));
// convert bytes to hex string
const hashHex = hashArray.map(b => ('00' + b.toString(16)).slice(-2)).joi...