SOURCE

function hasEmptyField(obj) {
  if (typeof obj === 'string') {
    obj = JSON.parse(obj)
  }
  if (obj instanceof Object) {
    for (var attr in obj) {
      // 属性值是否含有'',null,undefined
      if (obj.hasOwnProperty(attr) && (obj[attr] === '' || obj[attr] === null || obj[attr] === undefined)) {
          return true
      }
    }
		return false
  }
}

const testObjA = {
    a: '',
    b: 123,
    c: {a:111},
    d: [1,12]
}

const testObjB = {
    a: '555',
    b: 123,
    c: {a:111},
    d: [1,12]
}

console.log('testObjA',hasEmptyField(testObjA))
console.log('testObjB',hasEmptyField(testObjB))