The influence of Vue on the same value

api.getxx({},(res)=>{

　　this.data1 = res

　　this.data2 = res

})

 

 　　this.data1.splice(1,1) The value of data2 will also change.

　　Solution: cloning

api.getxx({},(res)=>{

　　this.data1 = res

　　this.data2 = res.slice(0)

})