10 2020 档案

js 数组对象的相同值相加合并
摘要：let arr = [ {commodity_id:1,quantity:10,amount:20}, {commodity_id:1,quantity:5,amount:10}, {commodity_id:2,quantity:10,amount:50}] mergeMap(arr) { // 阅读全文
posted @ 2020-10-27 15:03 卟萌 阅读(668) 评论(0) 推荐(0)
js 改变对象的key
摘要：//oldMap要改变的对象，newKey改变的key let newMap = this.replaceMapKey({quantity:'20',amout:'200'},newQuantity,newAmount) replaceMapKey(oldMap, newKey, newKey1) 阅读全文
posted @ 2020-10-23 17:12 卟萌 阅读(714) 评论(0) 推荐(0)