JavaScript Taskbook Level 9.10

Given a table. The user clicks on two cells in turn, highlighting them. Make all the cells located in order between those the user clicked on highlight in red.

Write code that will determine the maximum nesting level of a multidimensional array.

Given a list of some data for certain dates, stored in the following structure:

let data = [
	{
		year:  2019,
		month: 11,
		day: 20,
		data: ['array with data']
	},
	{
		year:  2019,
		month: 11,
		day: 21,
		data: ['array with data']
	},
	{
		year:  2019,
		month: 12,
		day: 25,
		data: ['array with data']
	},
	{
		year:  2019,
		month: 12,
		day: 26,
		data: ['array with data']
	},
	{
		year:  2020,
		month: 10,
		day: 29,
		data: ['array with data']
	},
	{
		year:  2020,
		month: 10,
		day: 30,
		data: ['array with data']
	},
	{
		year:  2020,
		month: 11,
		day: 19,
		data: ['array with data']
	},
	{
		year:  2020,
		month: 11,
		day: 20,
		data: ['array with data']
	},
}

Write code that will convert the data structure into a structure like this:

{
	year1: {
		month1: {
			Day 1: [data array],
			Day 2: [data array],
			Day 3: [data array],
		}
		month2: {
			Day 1: [data array],
			Day 2: [data array],
			Day 3: [data array],
		}
	}
	year2: {
		month1: {
			Day 1: [data array],
			Day 2: [data array],
			Day 3: [data array],
		}
		month2: {
			Day 1: [data array],
			Day 2: [data array],
			Day 3: [data array],
		}
	}
}