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Concat all strings inside a List using LINQ

....Boo); Console.ReadKey(); } } And here is my best :) items.Select(i => i.Boo).Aggregate((i, j) => i + delimiter + j) share | improve this answer | foll...
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Find all elements on a page whose element ID contains a certain text using jQuery

... $(this).doStuff(); }); Note the asterisk '*' at the beginning of the selector matches all elements. See the Attribute Contains Selectors, as well as the :visible and :hidden selectors. share | ...
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二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...映射成一个字符索引表。如下所示:(其中的SP是空格,Char是字符,Value是其索引值) 编码的过程是把字符两两分组,然后转成下表的45进制,然后转成11bits的二进制,如果最后有一个落单的,那就转成6bits的二进制。而编码模...
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SQL - Update multiple records in one query

...the rows u need using a small script. UPDATE [Table] SET couloumn1= (select couloumn1 FROM Table WHERE IDCouloumn = [PArent ID]), couloumn2= (select couloumn2 FROM Table WHERE IDCouloumn = [PArent ID]), couloumn3= (select couloumn3 FROM Table WHERE IDCouloumn = [PArent ID]), cou...
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How to find the kth largest element in an unsorted array of length n in O(n)?

...h order statistic. There's a very simple randomized algorithm (called quickselect) taking O(n) average time, O(n^2) worst case time, and a pretty complicated non-randomized algorithm (called introselect) taking O(n) worst case time. There's some info on Wikipedia, but it's not very good. Everything...
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How to get all groups that a user is a member of?

...alGroupMembership will do this. Get-ADPrincipalGroupMembership username | select name name ---- Domain Users Domain Computers Workstation Admins Company Users Company Developers AutomatedProcessingTeam share | ...
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Postgresql query between date ranges

... things become simpler if you use >= start AND < end. For example: SELECT user_id FROM user_logs WHERE login_date >= '2014-02-01' AND login_date < '2014-03-01' In this case you still need to calculate the start date of the month you need, but that should be straight forw...
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RichTextBox (WPF) does not have string property “Text”

... How about just doing the following: _richTextBox.SelectAll(); string myText = _richTextBox.Selection.Text; share | improve this answer | follow ...
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Is there a download function in jsFiddle?

... Crucial step missing. After jsfiddle.net/Ua8Cv/show select the javascript, choose view frame source, then save. Not just page source. – Eric Bridger Jan 25 '16 at 19:32 ...
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How do you run a single query through mysql from the command line?

... mysql -u <user> -p -e "select * from schema.table" share | improve this answer | follow | ...