合并两个阵列我有两个阵列(ARR1 & ARR2)这样通过分组基于第一阵列的元件在Javascript
var arr1 = ["A","B","C"];
var arr2 = [["A","aa"], ["A","ab"], ["A","ac"],["B","ba"],["B","bb"],["B","bc"],["C","ca"],["C","cb"]];
我想将它们组在一起成为根据的值在JavaScript第三阵列第一阵列。所需的输出:
arr3 = [ ["A",["aa","ab","ac"]], ["B",["ba","bb","bc"] ], ["C",["ca","cb"]] ]
注:我有arr2开始,并能够检索第一个值,并删除重复到arr1。
请指教。