在一堆土豆中明白了forEach、filter、map、some、every、find、findIndex、reduce间的区别
从挑土豆开始这里有一堆土豆,如果换成代码,可以表示如下:```varpotatos=[{id:'1001',weight:50},{id:'1002',weight:80},{id:'1003',weight:120},{id:'1004',weight:40},{id:'1005',weight:110},{id:'1006',weight:60}]```同时把上面的重量(g)记录成一个数组`v