Object.assign()

注意：Object.assign()拷貝的是屬性值。假如源對(duì)象的屬性值是一個(gè)指向?qū)ο蟮囊茫仓豢截惸莻€(gè)引用值。

不知道你是怎么寫的，使用$.extend不會(huì)過濾掉函數(shù)啊，使用$.extend的深拷貝試試：

let zTreeOnCheck = function() {}
let zTreeBeforeClick = function() {}
let zTreeOnRemove = function() {}
let addDiyDom = function() {}

var setting={
  data: {
    keep: {
    parent: true,
      leaf: true 
    }
  },
  check: {
    enable: true 
  },
  callback: {
    onCheck: zTreeOnCheck,   //函數(shù)名
    beforeClick: zTreeBeforeClick, //函數(shù)名
    onRemove: zTreeOnRemove //函數(shù)名
  },
  view: {
    showIcon: false, 
    showLine: false, 
    addDiyDom: addDiyDom //函數(shù)名
  }
};
let setting1 = {
  callback: {
    onCheck: function onCheck(){console.log('on check')},
    hello: function hello(){console.log('hello')}
  }
}
let hello = $.extend(true, {}, setting, setting1) // 深拷貝
console.log(hello)