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Question by byurocks23 · May 17, 2014 at 07:57 PM · javascriptarrayarrays

getting "null" when using array. (javascript)

I've done plenty of arrays in python so I understand the concept behind them, but I've never done one in JavaScript and it is not working. When I Debug.Log a item in the array, it gives me null. My code is

 var zero: AudioClip;
 var one: AudioClip;
 var two: AudioClip;
 var three: AudioClip;
 var four: AudioClip;
 var five: AudioClip;
 var six: AudioClip;
 var seven: AudioClip;
 var eight: AudioClip;
 var nine: AudioClip;

 var number = [zero,one,two,three,four,five,six,seven,eight,nine];


whenever I do Debug.Log(number[0]) it gives me null. What am I doing wrong?

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avatar image Eric5h5 · May 17, 2014 at 10:18 PM 0
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Using a ton of separate variables defeats the whole reason for using arrays in the first place. Get rid of all those and just use an array.

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Answer by AlucardJay · May 17, 2014 at 08:27 PM

is it an array of AudioClips? Or an array of Strings?

AudioClip :

 var number : AudioClips[];

String :

 var number : String[] = ["zero","one","two","three","four","five","six","seven","eight","nine"];

If I'm assuming correctly, you are trying to create an array of AudioClips from individual AudioClip components/variables.

You cannot do this outside a function, it would be something like :

 var zero: AudioClip;
 var one: AudioClip;
 var two: AudioClip;
 var three: AudioClip;
 var four: AudioClip;
 var five: AudioClip;
 var six: AudioClip;
 var seven: AudioClip;
 var eight: AudioClip;
 var nine: AudioClip;
 
 var number : AudioClips[];
 
 function Start()
 {
     number = new AudioClips[10]; // declare the size of the array
     
     // assign values to the array
     number[0] = zero;
     number[1] = one;
     number[2] = two;
     number[3] = three;
     // etc etc
 }

but if you're doing that, why not just drag and drop the AudioClips directly into the array in the inspector?

Great resource on Arrays and Collections in Unity

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avatar image AlucardJay · May 25, 2014 at 03:41 AM 0
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From your other question : I want to create an array

 var number : AudioClips[];


Now look in the Inspector at the variable number. Expand it (click the little grey arrow). Change the size, now you have boxes to drag and drop your clips in.

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