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POActionScript - Comparing & Removing Duplicates of Complex Arrays?
 

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  1. POActionScript - Comparing & Removing Duplicates of Complex Arrays?
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    <p>when comparing simple arrays, i use something like the following function to concatenate and remove duplicates:</p> <pre><code>//Merge public function merge(a1:Array, a2:Array):Array { var result:Array = a1.concat(a2); var dictionary:Dictionary = new Dictionary(); for each (var item:Object in result) dictionary[item] = true; result = new Array(); for (var key:Object in dictionary) result.push(key); dictionary = null; return result; } </code></pre> <p>however, this approach doesn't work on complex arrays.</p> <p>is there a well known algorithm, or is it even possible to write a function of recursion that can compare a <code>Vector.&lt;Object&gt;</code> with another? one that will always work even if the some objects being compared have additional key/value pairs?</p> <hr> <p><strong>[EDIT]</strong></p> <hr> <p>to be more clear, using a dictionary to determine if items in a simple array only works on primitive data types (int, number, string, etc.) or object references, so the above example works if it's passed 2 arrays resembling something like this:</p> <pre><code>var arr1:Array = new Array(1, 2, 3, 4, 5); var arr2:Array = new Array(8, 7, 6, 5, 4); </code></pre> <p>resulting in a merged array with the following values:</p> <pre><code>1, 2, 3, 8, 7, 6, 5, 4 </code></pre> <p>in contrast, i'm asking if it's possible to pass a function 2 complex arrays or <code>Vector.&lt;Object&gt;</code> all containing unique objects that may have identical key/value pairs and remove redundencies in the resulting <code>Vector.&lt;Object&gt;</code>. for example:</p> <pre><code>var vec1:Vector.&lt;Object&gt; = new Vector.&lt;Object&gt;(); vec1.push({city:"Montreal", country:"Canada"}); vec1.push({city:"Halifax", country:"Canada"}); var vec2:Vector.&lt;Object&gt; = new Vector.&lt;Object&gt;(); vec2.push({city:"Halifax", country:"Canada"}); vec2.push({city:"Toronto", country:"Canada"}); </code></pre> <p>merging the above 2 vector objects would result in the following vector by determining and removing objects with identical key/value pairs:</p> <pre><code>{city:"Montreal", country:"Canada"} {city:"Halifax", country:"Canada"} {city:"Toronto", country:"Canada"} </code></pre> <p>i'm searching for an algorithm which could handle the removal of these similar objects without having to know about their specific key/value names or how many key/value pairs there are within the object.</p>
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    1. USTheDarkIn1978
    1. USTheDarkIn1978
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    1. COHi, you replaced `result` with `dataProperty` in the example.
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    2. COah, missed that. fixed.
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