流浪のwolf

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数组对象删除不满足某些条件的对象 js

  recursiveFunction(items, childrenNodeName, ids) {
      console.log('items', ids);
      // 获取数组长度
      if (items) items = [];
      let len = items?.length
      // 循环遍历数组
      for (let i = 0; i < len; i++) {
        // 如果有子节点,递归遍历子节点
        if (items[i][childrenNodeName].length > 0) {
          this.recursiveFunction(items[i][childrenNodeName], childrenNodeName, ids)
        }
        // 删除不满足某些条件的节点,删除后,当前数组下标、长度均减一(这里条件是:
        // 当前项 id)
        console.log('ids.includes(items[i].id)', ids.includes(items[i].id));
        if (!ids.includes(items[i].id)) {
          items.splice(i, 1)
          len--
          i--
        }
      }
    },
    filter(data, id) {
      var newData = data.filter(x => x.id === id)
      newData.forEach(x => x.children && (x.children = this.filter(x.children, id)))
      return newData
    },

 

posted on 2024-02-29 13:36  流浪のwolf  阅读(98)  评论(0编辑  收藏  举报