去重 (根据某一字段) reduce
let buZhouList = [
{id:1,title:'aa'},
{id:2,title:'bb'},
{id:3,title:'cc'},
{id:4,title:'dd'},
{id:5,title:'aa'}
]
let object= {}
let open = buZhouList
buZhouList = open.reduce((cur,next) => {
object[next.title] ? "" : object[next.title] = true && cur.push(next)
return cur
},[])
以上是对title去重