查找数组的交集并创建一组新的数组

function findIntersection(array1, array2) {
  var result = [];
  
  for (var i = 0; i < array1.length; i++) {
    for (var j = 0; j < array2.length; j++) {
      if (array1[i] === array2[j]) {
        result.push(array1[i]);
        break;
      }
    }
  }
  
  return result;
}

var array1 = [1, 2, 3, 4, 5];
var array2 = [4, 5, 6, 7, 8];
var intersection = findIntersection(array1, array2);
console.log(intersection); // 输出 [4, 5]