JSFiddle - React, Tailwind, and code Playground

JavaScript

garages = [
	{
		name: '',
		country: '',
		cars:[
			{
				model: 'BMW',
				year: ''
			}
		],
		hook: function(){}
	},

	{
		name: '',
		country: '',
		cars:[
			{
				model: 'Honda',
				year: ''
			}
		],
		hook: function(){}
	}

];

$.each(garages, function(i,v){
	$.each(garages[i].cars, function(i2, v2){
		alert(garages[i].cars[i2].model);
	})
})