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Why is it slower to iterate over a small string than a small list?

...ith timeit and noticed that doing a simple list comprehension over a small string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time. ...
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What is the Simplest Way to Reverse an ArrayList?

...adding elements : public class ListUtil { public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("1"); arrayList.add("2"); arrayList.add("3"); arrayList.add("4"); arrayList.add...
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Elegant way to invert a map in Scala

...t; "b", 4 -> "b") scala> m.groupBy(_._2).mapValues(_.keys) res0: Map[String,Iterable[Int]] = Map(b -> Set(2, 4), a -> Set(1)) share | improve this answer | follo...
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How to check sbt version?

...t project to jacek (in build file:/Users/jacek/) [info] Setting: java.lang.String = 0.13.1 [info] Description: [info] Provides the version of sbt. This setting should be not be modified. [info] Provided by: [info] */*:sbtVersion [info] Defined at: [info] (sbt.Defaults) Defaults.scala:68 [info] D...
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Best practice using NSLocalizedString

I'm (like all others) using NSLocalizedString to localize my app. 9 Answers 9 ...
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Run cURL commands from Windows console

...m using) I need the Git Bash installed. I don't like installing wizards or extra bloat. I'm also not a big fan of trying to use PowerShell to do everything in windows – BRogers Mar 6 '17 at 20:10 ...
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node.js database [closed]

... By default, node_redis will return JavaScript strings for all commands. To get buffers instead, create a client with createClient(port, host, { return_buffers: true }); – Matt Ranney Sep 20 '11 at 6:40 ...
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Why is it a bad practice to return generated HTML instead of JSON? Or is it?

...there is still the solution/hack of sending all those parts inside one big string that groups several HTML portions, and extract the relevant parts in JS. For instance, you could return some string that looks like this : <!-- MARKER_BEGIN_PART1 --> here goes the html code for part 1 <!-- ...
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Printing without newline (print 'a',) prints a space, how to remove?

...chieving your result. If you're just wanting a solution for your case, use string multiplication as @Ant mentions. This is only going to work if each of your print statements prints the same string. Note that it works for multiplication of any length string (e.g. 'foo' * 20 works). >>> pri...
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Replacing some characters in a string with another character

I have a string like AxxBCyyyDEFzzLMN and I want to replace all the occurrences of x , y , and z with _ . 5 Answers ...