找出两个多维数组之间的差异

function findArrayDifferences(arr1, arr2) {
    let differences = [];

    function compareArrays(a, b) {
        if (Array.isArray(a) && Array.isArray(b)) {
            let aKeys = new Set(a.map(JSON.stringify));
            let bKeys = new Set(b.map(JSON.stringify));

            let onlyInA = [...aKeys].filter(key => !bKeys.has(key));
            let onlyInB = [...bKeys].filter(key => !aKeys.has(key));

            onlyInA.forEach(key => {
                differences.push({ type: 'only in first array', value: JSON.parse(key) });
            });

            onlyInB.forEach(key => {
                differences.push({ type: 'only in second array', value: JSON.parse(key) });
            });

            let commonKeys = [...aKeys].filter(key => bKeys.has(key));
            commonKeys.forEach(key => {
                compareArrays(JSON.parse(key), b.find(item => JSON.stringify(item) === key));
            });
        } else if (a !== b) {
            differences.push({ type: 'value difference', value1: a, value2: b });
        }
    }

    compareArrays(arr1, arr2);
    return differences;
}

// 示例用法
let arr1 = [
    [1, 2, 3],
    [4, 5, 6]
];

let arr2 = [
    [1, 2, 3],
    [4, 7, 8]
];

console.log(findArrayDifferences(arr1, arr2));