// constructer
class Person {
 constructor(name,age,sex) {
  this.name = name;
  this.age = age;
  this.sex = sex;
 }
 getInfo() {
  return `name:${this.name},age:${this.age},sex:${this.sex}`;
 }

}
var jone = new Person('jone', 18, 'man');
console.log(jone.name);
export default Person;

npm install -g es-checker

npm install --save-dev babel-cli babel-preset-es2015 babel-preset-es2017

npm install --save-dev babel-cli babel-preset-es2015 babel-preset-es2017

PS D:\git\study\mytest> babel src/Object/class.js
'use strict';

Object.defineProperty(exports, "__esModule", {
 value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

// constructer
var Person = function () {
 function Person(name, age, sex) {
  _classCallCheck(this, Person);

  this.name = name;
  this.age = age;
  this.sex = sex;
 }

 _createClass(Person, [{
  key: 'getInfo',
  value: function getInfo() {
   return 'name:' + this.name + ',age:' + this.age + ',sex:' + this.sex;
  }
 }]);

 return Person;
}();

var jone = new Person('jone', 18, 'man');
console.log(jone.name);
exports.default = Person;