angular.extend(dst, src)对象拓展

angular.extend(dst, src)

• 作用：对象的拓展
• 参数： 
  • dst：拓展的对象
  • src：源对象

• 返回值：拓展的对象

  var dst = {name: 'xxx', country: 'China'};
  var src = {name: 'yyy', age: };
  
  angular.extend(dst, src);
  
  console.log(src); //$ Object {name: "yyy", age: 10}
  console.log(dst); //$ Object {name: "yyy", country: "China", age: 10}