Sort Multiple Arrays By Their Length

Question

I have multiple arrays:

http://jsfiddle.net/NgcjG/

I need to sort the arrays by their length. Eg:

http://jsfiddle.net/k8WAk/

How to find out which one is the largest, the second largest, the third largest, and the least array?

Answer 1

Best Answer

Answer by whydoidoit · Jun 26, 2012 at 01:09 PM

You can do it like this:

 import System.Linq;
 import System.Collections.Generic;

 var arrays = new List.<Array>();
 arrays.Add(arr_a);
 arrays.Add(arr_b);
 arrays.Add(arr_c);
 arrays.Add(arr_d);
 var sortedArrays = arrays.OrderBy(function(a) { return a.length; }).ToList();
 var shortestArray = sortedArrays[0];
 var nextShortest = sortedArrays[1];

I have to say using Array is not a good idea in Unity Script - there are a lot of better collection classes (like the ones I've used here). You should use a strongly typed collection where possible or a List implementation.

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gotanidea · Jun 27, 2012 at 04:58 AM 0

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Thank you !

gotanidea · Jun 27, 2012 at 06:39 AM 0

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I'm sorry, after trying this code, I got errors:

"ArgumentOutOfRangeException: Argument is out of range. Parameter name: index"

When I tried to print the "nextShortest" variable, I got:

"Null UnityEngine.MonoBehaviour:print(Object)"

I attached the Javascript code to the Main Camera. I only added "print(nextShortest);" line:

http://jsfiddle.net/DvDPY/

What went wrong?

whydoidoit · Jun 27, 2012 at 12:15 PM 0

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Did you put it inside a function? You didn't in your jsfiddle example...

  function Start() {
     var arrays = new List.<Array>();
    ....
  }

gotanidea · Jul 02, 2012 at 05:44 AM 0

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Hey, it works! Thank you very much!!

whydoidoit · Jul 02, 2012 at 08:41 AM 0

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No problem. Just remember Unity Script really isn't Javascript. It just looks a bit like it... (and unfortunately is officially called JavaScript which really doesn't help)

Sort Multiple Arrays By Their Length

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