treebuilder.js

let a = {
  name: 'selva'
}

let zfoo = {
  foo: {
    name: 'a',
    ofo: {
      bar: a
    }
  },
  bar: false
}

// findFilePath(zfoo, a)
// => foo/ofo/bar

export const findFilePath = (root, value) => {
  let paths = ['']
  let found = false
  function traverse(tree) {
    Object.keys(tree).some((node) => {
      if (found) {
        return true
      }
      let subtree = tree[node]
      if (subtree === value) {
        paths.push(node)
        found = true
        return true
      }
      if (typeof subtree === 'object' && subtree.toString() === '[object Object]') {
        paths.push(node)
        traverse(subtree)
      }
    })
    if (!found) paths.pop()
  }
  traverse(root)
  return paths.join('/')
}