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Get nth character of a string in Swift programming language

...ng a linear loop inside another linear loop means this for loop is accidentally O(n2) — as the length of the string increases, the time this loop takes increases quadratically. Instead of doing that you could use the characters's string collection. – ignaciohugog ...
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How can I remove an element from a list, with lodash?

...eturn an element if the predicate is true. Your implementation will return all unwanted elements instead of those you want to keep – Xeltor Jun 14 '17 at 19:26 5 ...
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How do I use installed packages in PyCharm?

...you use the os (ex. apt-get), or pip in a virtualenv, packages will be installed to a location already on the path. In your example, GNU Radio is installed to the system Python 2's standard site-packages location, which is already in the path. Pointing PyCharm at the correct interpreter is enough;...
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Convert Rows to columns using 'Pivot' in SQL Server

...n but it is easier to see the correct code using a hard-coded version initially. First up, here are some quick table definitions and data for use: CREATE TABLE #yt ( [Store] int, [Week] int, [xCount] int ); INSERT INTO #yt ( [Store], [Week], [xCount] ) VALUES (102, 1, 96), (...
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How to use ng-repeat without an html element

I need to use ng-repeat (in AngularJS) to list all of the elements in an array. 8 Answers ...
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How to get an object's properties in JavaScript / jQuery?

...Script's native for in loop: var obj = { foo: 'bar', base: 'ball' }; for(var key in obj) { alert('key: ' + key + '\n' + 'value: ' + obj[key]); } or using jQuery's .each() method: $.each(obj, function(key, element) { alert('key: ' + key + '\n' + 'value: ' + element); }); W...
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How to remove constraints from my MySQL table?

... Postgres, MSSQL, and Oracle all have alter table .. drop constraint. MySQL is the odd one out, it seems. – Jared Beck Mar 23 '15 at 23:48 ...
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How to call Base Class's __init__ method from the child class? [duplicate]

... If you pass BaseClass to super, it'll skip over BaseClass and call object.__init__, which is almost certainly not what you want. – abarnert Oct 6 '13 at 7:29 1 ...
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Convert a PHP object to an associative array

...e Typecasting with (array) and (object) works reliably and the same across all versions since PHP 4.3. See 3v4l.org/X6lhm. If you get a syntax error, you did something wrong. – Gordon Nov 30 '15 at 10:26 ...
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How to convert array values to lowercase in PHP?

How can I convert all values in an array to lowercase in PHP? 10 Answers 10 ...