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

Here's a proposal:

function depth(o){
  var values;
  if (Array.isArray(o)) values = o;
  else if (typeof o === "object") values = Object.keys(o).map(k=>o[k]);
  return values ? Math.max.apply(0, values.map(depth))+1 : 1;
}

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'
      }]
    }]
  }]
};

function depth(o){
  var values;
  if (Array.isArray(o)) values = o;
  else if (typeof o === "object") values = Object.keys(o).map(k=>o[k]);
  return values ? Math.max.apply(0, values.map(v=>depth(v)))+1 : 1;
}

console.log(depth(test))

EDIT: this is a generic solution. I'm still unsure whether you wanted a very specific one (i.e. with a children field or a generic one).