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The length of the array in the object does not match

I am trying to use tree hierarchy in D3 and am stuck. I thought I was building JSON correctly, but when I looked at the object in the Developer Tool, I saw the following:

chrome

Note that the first line shows that the array of dependents has a length of 0, but when expanded, you can clearly see that the dependents have 3 objects. When I convert it, I get the following:

{"attributes":{"id":0,"name":"root"},"dependents":[]}

Any ideas what could be wrong? Thank!

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This problem usually occurs when you change an object after registering it, because Chrome does not perform a deep copy of the object when registering, but simply saves the link.

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console.log(JSON.parse(JSON.stringify(myobject)));

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