Nice use of filter and map to remove an item recursively found somewhere on stackoverflow

recursive-filter-remove.js

let myJson = {
    "type": "list",
    "name": "The P5.js Landscape",
    "description": "This is a list of the P5.js landscape.",
    "features": [
      {
        "type": "list",
        "name": "Handy P5.js Tools",
        "description": "This is a list of handy p5.js Tools ranging from commandline tools, project generators, and web editors.",
        "features": [
          {
            "url": "https://p5js.org/",
            "name": "p5js website",
            "description": "p5js is a javascript library to make coding more accessible to everyone",
            "clientId": "5gxQd02yqj"
          },
          {
            "url": "https://www.npmjs.com/package/p5-manager",
            "name": "P5 Manager commandline tool",
            "description": "Commandline scaffolding tool for generating p5js projects",
            "clientId": "moxtnVEDyl"
          },
          {
            "url": "http://1023.io/p5-inspector/",
            "name": "P5 playground",
            "description": "A What you see is what you get editor for p5.js",
            "clientId": "HOHy0C-B3h"
          },
          {
            "url": "#",
            "name": "New URL!",
            "description": "A description for your new URL?",
            "clientId": "no-MnmX-saQ"
          }
        ],
        "clientId": "zifyZ0V6mfv"
      },
      {
        "type": "list",
        "name": "P5 Libraries",
        "description": "A list of libraries built for P5.js.",
        "features": [
          {
            "url": "https://p5js.org/libraries/",
            "name": "P5 Libraries ❤️️️❤️️️❤️️️",
            "description": "officially on the website",
            "clientId": "RBkPBiPJrJU"
          },
          {
            "url": "https://github.com/generative-design/generative-design-library.js",
            "name": "Generative Design Library🌈🌈🌈",
            "description": "Generative Design library bundled with lots of other tools built for p5.js",
            "clientId": "tJnqZDdXH2L"
          }
        ],
        "clientId": "Ob3cg_Jtu1e"
      }
    ],
    "clientId": "ggQlEMcHt0"
  }

  console.log( JSON.stringify(myJson) )

  console.log( '\n\n\n\n' )
  let newJson = Object.assign({}, myJson);
  newJson = removeFromTree(newJson, 'zifyZ0V6mfv')
  console.log( JSON.stringify(newJson) )

  function removeFromTree(parent, featureid){
    if(parent.clientId == featureid){
      // delete parent
      return {}
    }
  
    if(parent.features){
      parent.features = parent.features
        .filter(function(child){ return child.clientId !== featureid})
        .map(function(child){ return removeFromTree(child, featureid)});
    
    }
    return parent;
  }