How do I write this recursive function to find the max depth of my object?

Question

I\'m trying to write a function that will loop through my object and return the level depth of the object.

For example, if I ran the function on this object:

Answer 1

You could map the depth of every children and take the maximum value of it.

function getDepth(object) {
    return 1 + Math.max(0, ...(object.children || []).map(getDepth));
}

var test = { name: 'item 1', children: [{ name: 'level 1 item', children: [{ name: 'level 2 item' }, { name: 'second level 2 item', children: [{ name: 'level 3 item' }] }] }] },
    depth = getDepth(test) - 1; // zero based

console.log(depth);