数组何并

2016-08-10 03:34:09 171 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

js数组及数组对象取并集、交集、差集数组区交集 let a=new Set([1,2,3,4,5]); let b=new Set([1,2,3,4,5,6,7,8,9]); let arr = Array.from(new Set([...a, ...b])); console.log('arr',arr); 数组取并集 let a=new Set([1,2,3,4,5]); let b=new Set([1,2,3,4,... 阅读详情

Array

(

    [0] => Array

        (

            [goods_id] => 590

            [goods_num] => 1

            [goods_pay_price] => 2000.00

        )



    [1] => Array

        (

            [goods_id] => 626

            [goods_num] => 2

            [goods_pay_price] => 2000.00

        )



    [2] => Array

        (

            [goods_id] => 628

            [goods_num] => 1

            [goods_pay_price] => 1000.00

        )



    [3] => Array

        (

            [goods_id] => 628

            [goods_num] => 2

            [goods_pay_price] => 2000.00

        )



    [4] => Array

        (

            [goods_id] => 626

            [goods_num] => 2

            [goods_pay_price] => 2000.00

        )



)

怎么快速把这个数组合并起来，相同goods_id 的goods_num和goods_pay_price分别加起来