code: function setValue (root, path, value) {
    const tokens = tokenize(path)
    let node = root
  
    let i
    for (i = 0; i < tokens.length - 1; i++) {
      const token = tokens[i]
  
      if (node[token] !== undefined && typeof node[token] === 'object') {
        node = node[token]
      } else if (typeof tokens[i + 1] === 'number') {
        node = node[token] = []
      } else {
        node = node[token] = {}
      }
    }
  
    node[tokens[i]] = value
  }
docs: This class allows to set or get specific
  values within a json data structure using
  string-based paths
  
  @param {String} path A path, e.g. users[2].firstname
  
  @constructor