[
{
"h1": "h001",
"h2": "z001"
},
{
"h1": "h002",
"h2": "z002"
},
{
"h1": "h003",
"h2": "z003"
}
]
[{
"h1": "h001",
"h2": "z001",
"children": {
"h1": "h002",
"h2": "z002",
"children": {
"h1": "h003",
"h2": "z003"
}
}
}]
const example = (arr) => {
let result = [];
if (Array.prototype.hasOwnProperty.call(arr, 0) && arr[0] instanceof Object)
result.push(arr[0]);
let lastObj = result[0];
for (let i = 1; i < arr.length; ++i) {
const el = arr[i];
if (el && el instanceof Object) {
lastObj.children = el;
lastObj = el;
}
}
return result;
}