const treeData = [{
  title: "1",
  key: "1",
  children: [{
    title: "1-1",
    key: "1-1",
    children:[{
      title:"1-1-1",
      key:"1-1-1",
    },{
      title:"1-1-2",
      key:"1-1-2",
    }]
  }, {
    title: "1-2",
    key: "1-2",
  },{
    title: "1-3",
    key: "1-3",
  },{
    title: "1-4",
    key: "1-4",
  }],
}];

want to filter the tree through the incoming key,. If the parent is dropped by Filter, all the children below the parent are also Filter.
I didn"t achieve the effect of Filter through recursive map, or recursive filter. The code is as follows:

deleteTreeData = (data,selectedKey) => {
    const newTreeData = data.filter((item) => {
      if(item.children){
        this.deleteTreeData(item.children,selectedKey);
      }

      return item.key !== selectedKey;

    });

    this.setState({
      treeData : newTreeData,
    },function(){
      console.log("=====newTreeData:"+JSON.stringify(newTreeData));
    });
  }

if you write this, you can only delete the top-level menu. What is the correct idea? thank you.