How to split a multidimensional object?

• 0
  there is a deep object of the kind
  

  {
   name: "one"
   children: [
    { name: "two",
       children[{
           name: "three",
           children[]}]
  },
  { name: "four",
       children[{
           name: "five",
           children[]}]
  }
  ]
  }

  
  etc.
  
  you need to get from this another object of the form
  
  

  {
  one: [{listOfChildren}],
  two: [{listOfChildren}]
  three:[{listOfChildren}]
  }

  
  
  If there are no children, then do not create key: value

  JavaScript Adalaide Bates, Apr 9, 2019

---

3 Answers
• 0
  If, of course, you understood correctly.
  
  

  const collect = (entries, store = {}) => {
  
    for (const entry of entries) {
  
      const { name, ...data } = entry;
  
      
  
      if (data.children.length > 0) {
  
        store[name] = data;
  
        
  
        collect(data.children, store);
  
      }
  
    }
  
  
  
    return store;
  
  };

  Sebastian Carr

---

• 0
  What are the problems?
  
  If you want - recursively:

  function toFlatMap(array, map = {}) {
  
  	for(const {name, children} of array) {
  
      map[name] = children;
  
      toFlatMap(children, map);
  
    }
  
    return map;
  
  }

  
  
  Do you want - linearly:

  function toFlatMap(array, map = {}) {
  
    let stack = array.slice();
  
    let current;
  
  	while(current = stack.shift()) {
  
      map[current.name] = current.children;
  
      stack.push(...current.children);
  
    }
  
    return map;
  
  }

  Fynn Garcia

---

• 0
  Thank you all, I found the solution myself)
  
  Most of all, the solution is Alexander
  
  

  let menu = {}
  
  
  
      function getMenu(obj){
  
          if(obj.children.length > 0){
  
              menu[obj.url] = obj.children
  
          }
  
          obj.children.map(i => getMenu(i))
  
           return menu;
  
      }

  Alexander Weaver

---