Create and Locate an Item in a JSON Tree

json = [
	{
		key: 1, 
		id: 1, 
		label: "Parent #1",
		isexpanded: false,
		children: [
			{
				key: 11, 
				id: 11, 
				label: "Child #1-#1",
				isexpanded: false,
				children: [
					{
						key: 111, 
						id: 111, 
						label: "Child #1-#1-#1",
						isexpanded: false,
						children: [
						]
					}
				]
			}
		]
	},
	{
		key: 2, 
		id: 2, 
		label: "Parent #2",
		isexpanded: false,
		children: [
			{
				key: 22, 
				id: 22, 
				label: "Parent #2-#2",
				isexpanded: false,
				children: [
					{
						key: 222, 
						id: 222, 
						label: "Parent #2-#2-#2",
						isexpanded: false,
						children: [
							{
								key: 2222, 
								id: 2222, 
								label: "Parent #2-#2-#2-#2",
								isexpanded: false,
								children: [
								]
							}
						]
					}
				]
			}
		]
	},
	{
		key: 3, 
		id: 3, 
		label: "Parent #3",
		isexpanded: false,
		children: [
		]
	}
]

function findTreeItem(items, idToFind) {
	for(let idx = 0; idx < items.length; idx++) {
		if (items[idx].id === idToFind) {
			return items[idx];
		}
		if ((items[idx].children) && (items[idx].children.length)) {
			const foundChild = findTreeItem(items[idx].children, idToFind);
			if (foundChild) {
				return foundChild;
			}
		}
	}
	return null;
}