arr.some()与arr.every()；应用场景

arr.some()与arr.every();
// tabledata第一层只要有在selection里面就是全选
      const isSelect = selection.some((el) => {
        const tableDataIds = this.tableData.map((j) => j.spuCode);
        return tableDataIds.includes(el.spuCode);
      });
      // tableDate第一层只要有不在selection里面就是全不选
      const isCancel = !this.tableData.every((el) => {
        const selectIds = selection.map((j) => j.spuCode);
        return selectIds.includes(el.spuCode);
      });
      if (isSelect) {
        selection.map((el) => {
          if (el.children) {
            // 解决子组件没有被勾选到
            this.setChildren(el.children, true);
          }
        });
      }
      if (isCancel) {
        this.tableData.map((el) => {
          if (el.children) {
            // 解决子组件没有被勾选到
            this.setChildren(el.children, false);
          }
        });
      }