How can I get the number of children block that nested inside of parent block?

[Jay An(안재현)]

Hi 

Here is the screenshot of the project that I am working on.

As I mentioned ealier, I want to get the number of children block which are Code Section  block nested inside of parent block which is Root block.

I used getChildren method like below

```

rootBlock.getChildren()

```

However this returns only one length of block. On the other hand getDescendants method returns all children nested inside of Root block.

I just want to get the number of blocks that nested inside only one depth(Code Section) which is 3.

How can I do this?

[Neil Fraser]

This should do the trick.  Just change the name of the input from 'DO' to whatever your root block's input is named.

var childBlock = rootBlock.getInput('DO').connection.targetBlock();

var count = 0;

while (childBlock) {

  count++;

  childBlock = childBlock.nextConnection.targetBlock();

}

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Neil Fraser, Switzerland
https://neil.fraser.name