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Why can't you access the object's indexes without declaring them? I thought an array has indexes automatically
3 Respostas
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How can you access something that doesn't exist?
Edit: looks like you meant initializing instead of declaring. And while you can access an unitialized variable, its value will be just whatever was in memory, ie a garbage value not corresponding to anything.
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That's because, that particular element you are trying to access has a null value.
Merely declaring an array doesn't mean that you may already access its elements.
you have to initialize its elements first before you can access them.
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But an array has indexes when it's number of indexes is declared...