jses6数组对象筛选使⽤filter，find⽅法通过筛选条件符筛选数组对象中的元素
let arr =[
{code:'1', name:'苹果'},
{code:'2', name:'雪梨'},
{code:'3', name:'葡萄'},
{code:'4', name:'⾹蕉'},
{code:'5', name:'橙⼦'},
]
filter过滤对象数组let searchCode ='3'
let searchByFilter = arr.filter(item => de === searchCode)
let searchByFind = arr.find(item => de === searchCode)
console.log(searchTarget)//  [{code: "3", name: "葡萄"}]，查不到则返回 []
console.log(searchByFind)// {code: "3", name: "葡萄"}, 查不到则返回undefined
两个数组对象取共同集合
let arr2 =[
{code:'1', name:'苹果'},
{code:'3', name:'葡萄'},
{code:'6', name:'西⽠'},
{code:'7', name:'荔枝'}
]
let conmonArr = arr.filter(item => arr2.some(it => it.code === de))
console.log(conmonArr)
/
/ [
// {code: "1", name: "苹果"},
// {code: "3", name: "葡萄"}
//]

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