自创算法-js求数组交集

1.求两个纯数字数组交集

  var arr1 = [1,3,5,6,4,3,2]
  var arr2 = [8,32,1,76,3,2]
  //常见的错误写法
    function f0() {
    var rst = []
    for (var i = 0; i