SOURCE

var fun = function() {}
var anObj = { a: 'e'}
var anArr = []
var obj = {
	a: 2,
	b: anObj,
	c: anArr,
	d: fun
}

anArr.push(anObj, obj)


var assignObj = Object.assign({}, obj);
// var deepObj = JSON.parse(JSON.stringify(obj));

obj.a = 3
obj.c.push(4)
obj.b.a = 'wangbaoqi'

console.log(assignObj.b.a)
// console.log(deepObj.a)