Graph traversal javascript with update convert date

graph_traversal_javascript_with_update.js

// The object graph
let date = new Date()
let data = {
  result: {
    id: 'query1',
    list: [1, 'hello', date],
    hash: {hello: 1, bye: 2, z: 'hello', d: date},
    goal: 50,
    created_at: date
  }
}

// Setting up realistic data
data = JSON.stringify(data)
data = JSON.parse(data)

// The date format from (new Date()).toString()
const format = /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d{3})?Z$/

// The converter
const convert = (val) => {
  // Convert
  if (format.test(val)) {
    return new Date(val)
  }
  return val
}

// Traverse
const traverse = (obj) => {
  for (let k in obj) {
    if (obj[k] && typeof obj[k] === 'object') {
      traverse(obj[k])
    } else {
      // Do something with obj[k]
      obj[k] = convert(obj[k])
    }
  }
}

// Start traversing
traverse(data)

console.log(data)