const list = [
{
key: 1,
name: 'John Brown sr.',
age: 60,
address: 'New York No. 1 Lake Park',
children: [
{
key: 11,
name: 'John Brown',
age: 42,
address: 'New York No. 2 Lake Park',
},
{
key: 12,
name: 'John Brown jr.',
age: 30,
address: 'New York No. 3 Lake Park',
children: [
{
key: 121,
name: 'Jimmy Brown',
age: 16,
address: 'New York No. 3 Lake Park',
},
],
},
{
key: 13,
name: 'Jim Green sr.',
age: 72,
address: 'London No. 1 Lake Park',
children: [
{
key: 131,
name: 'Jim Green',
age: 42,
address: 'London No. 2 Lake Park',
children: [
{
key: 1311,
name: 'Jim Green jr.',
age: 25,
address: 'London No. 3 Lake Park',
},
{
key: 1312,
name: 'Jimmy Green sr.',
age: 18,
address: 'London No. 4 Lake Park',
},
],
},
],
},
],
},
]
