裝Ｂ攤平法

b.js

var obj = {
  "name" : {
    full_name: 'Hello',
    given: ['a name', 'b name', 'c name']
  },
  "tel" : {
    phone: '0000000',
    mobile: '+886 11111111'
  },
  "address" : '天龍區'
}


var obj2 = {
  "name" : {
    fullName: 'Hello',
    given: 'a name, b name, c name'
  },
  "contact" : {
    internal_phone: '0000000',
    mobile: {
      code: '+886',
      number: {

      }
    }
  },
  "address" : '天龍區'
}

function convertJSONAttributes(input){
  var result = {}

  Object.keys(input).forEach(key => {

    if(typeof input[key] === 'object'){
      input[key] = convertJSONAttributes(input[key])
    }

    console.log("typeof input[key] === 'object'", typeof input[key] === 'object', key)

    // console.log('result', result)

    // console.log('key', key)
    switch(key){
      // Level 1
      case 'name':
        result[key] = input[key]
        break;
      case 'tel':
        result['contact'] = input[key] 
        break;

      // Level 2
      case 'full_name':
        result['fullName'] = input[key]
        break;
      case 'phone':
        result['internal_phone'] = input[key]
        break;
      case 'mobile':
        // 
        var [code, number] = input[key].split(' ')

        // 
        // var tmp = input[key].split(' ')
        // var code = tmp[0]
        // var number = tmp[1]

        result['mobile'] = {
          code,
          number
        }
        break;
      case 'given':
        var tmp = []
        Object.keys(input[key]).forEach(_ => {
          tmp.push(input[key][_])
        })
        result['given'] = tmp.join(',')
        break;
      default:
        result[key] = input[key]
    }
  })

  return result
}


var r = convertJSONAttributes(obj)


console.log('result: ', r)