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Question by areeve · Nov 08, 2012 at 07:11 AM · javascriptarrayclasspushmultidimensional

Push Custom Class to Array (JavaScript)

Hi there,

I'm trying to push a custom class to an array and then output the value - but I'm having trouble. I can push the class object to the array without error, but when when I try to print 'EventMeta.EventObject.score' I get a NullRef. Code sample below, can anyone help?

 private var CurrentTime : int = -1;
 private var EventMeta = new Array();
 
 class EventObject extends System.ValueType {
     internal var type : String;
     internal var time : int;
     internal var score : int;
     internal var height : int;
 }
 
 function PushToArray() {
 
         var c = new EventObject();
 
         CurrentTime++;
         c.type = "Story";
         c.time = CurrentTime;
         c.score = Random.Range(0,1000000);
         c.height = Random.Range(100,300);
 
         EventMeta.push(c);
 
         print(EventMeta.EventObject.score);
 
 }
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Answer by Seth-Bergman · Nov 08, 2012 at 07:29 AM

your line: print(EventMeta.EventObject.score);

is wrong, for an Array, we access the element of the Array by its index:

 print(EventMeta[CurrentTime].score);

but I believe using Arrays is not good, you should instead use List, it is more efficient I think

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avatar image SuperBiasedMan · May 24, 2015 at 05:56 PM 0
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Can you clarify if a List is more efficient even if the array size is always fixed?

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