js 怎样对比两个数组？并且将不一样的数据提取出来

js 怎样对比两个数组？并且将不一样的数据提取出来呢?凑字数呀呀

已有资源：

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入库的资源：

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合并两数组，然后去重呗

你这个还是不太明确，这两个数组是树形数据还是普通的一维数组，如果是树形数据是固定级数的树形数据，还是不确定级数的树形数据，这些不确定，没法打开思路

是数组里对象所以属性都不能一样还是其中一个属性不能一样

不太懂题主啥意思？对比规则没讲清楚，下面代码大致写的拿去改改应该能用。

class arrayExtract {
  constructor(arr1, arr2, key1, key2) {
    this.arr1 = arr1;
    this.key1 = key1;
    this.arr2 = arr2;
    this.key2 = key2 ? key2 : key1;
    this.result = [];
    this.computed();
  }
  compare(arr1, arr2) {
    arr1.forEach(item1 => {
      arr2.forEach(item2 => {
        if(item1[this.key1] === item2[this.key2]) {
          item1.__same__ = true;
          item2.__same__ = true;
          this.compare(arr1.children || [], arr2.children || []);
        }
      })
    });
    return arr1
      .filter((item) => !item.__same__)
      .concat(arr2.filter((item) => !item.__same__));
  }
  computed() {
    if (Array.isArray(this.arr1) && Array.isArray(this.arr2) && this.key1) {
      this.result = this.compare(this.arr1, this.arr2);
    } else {
      console.error("-- params error --");
    }
  }
}