JS/ES6/lodash查找两个多维数组中缺失元素的索引

const _ = require('lodash');

// 示例多维数组
const array1 = [[1, 2], [3, 4], [5, 6]];
const array2 = [[1, 2], [3, 4], [7, 8]];

// 扁平化多维数组
const flattenArray1 = _.flattenDeep(array1);
const flattenArray2 = _.flattenDeep(array2);

// 找出缺失的元素
const missingElements = _.difference(flattenArray1, flattenArray2);

// 找出缺失元素的索引
const missingIndexes = missingElements.map(element => {
  return flattenArray1.findIndex(item => item === element);
});

console.log('Missing elements:', missingElements);
console.log('Missing indexes:', missingIndexes);