Array to Tree

Converts a flat node array into a tree structure.

Parameters

It takes two parameters:

• Array: Flat node array

• Options: An optional parameter object used to configure the specific behavior of the conversion method

  Parameter	Description	Type	Default
  childrenKey	Custom node children field name	string	'children'
  idKey	Custom node ID field name	string	'id'
  pidKey	Custom node parent ID field name	string	'pid'

Example

const flatArray = [
  { uid: '1', name: 'node1', pid: null },
  { uid: '2', name: 'node2', pid: '1' },
  { uid: '3', name: 'node3', pid: '1' },
  { uid: '4', name: 'node4', pid: '2' },
  { uid: '5', name: 'node5', pid: '2' },
  { uid: '6', name: 'node6', pid: '3' }
];

const options = {
  idKey: 'id',
  pidKey: 'pid',
  childrenKey: 'children'
};

const treeArray = arrayToTree(flatArray, options);