//data
"locations": [
	{
	"name": "Business Academy Australia",
	"lat": -33.8688,
	"lng": 151.2093,
	"website": "https://www.businessacademyaustralia.com.au",
	"tel": "0290198888",
	"email": "info@businessacademyaustralia.com.au",
	"category": "Campus",
	"governmentService": true,
	"formattedLocality": "Sydney, NSW 2000",
	"providerId": "13579",
	"locationId": "4001",
	"registeredTrainerId": "24680",
	"isVetFeeProvider": false,
	"locationTypeId": null,
	"facilities": null,
	"service": null,
	"apprenticeshipTraineeship": true,
	"minimumFee": 1400,
	"maximumFee": 2800,
	"isVetFeeCourse": false,
	"isAvailableOnline": true,
	"isAvailablePartTime": true,
	"deliveryModes": ["In-person"]
	},
	{
	"name": "Entrepreneur Education",
	"lat": -27.4698,
	"lng": 153.0251,
	"website": "https://www.entrepreneureducation.com.au",
	"tel": "0733332222",
	"email": "info@entrepreneureducation.com.au",
	"category": "Campus",
	"governmentService": true,
	"formattedLocality": "Brisbane, QLD 4000",
	"providerId": "98765",
	"locationId": "4002",
	"registeredTrainerId": "13579",
	"isVetFeeProvider": false,
	"locationTypeId": null,
	"facilities": null,
	"service": null,
	"apprenticeshipTraineeship": true,
	"minimumFee": 3800,
	"maximumFee": 4700,
	"isVetFeeCourse": true,
	"isAvailableOnline": false,
	"isAvailablePartTime": false,
	"deliveryModes": ["Online","Hybrid"]
	},
	{
	"name": "Small Business Training Institute",
	"lat": -27.9687807,
	"lng": 153.4066696,
	"website": "https://www.sbtinstitute.com.au",
	"tel": "0388885555",
	"email": "info@sbtinstitute.com.au",
	"category": "Campus",
	"governmentService": false,
	"formattedLocality": "Melbourne, VIC 3000",
	"providerId": "54321",
	"locationId": "4003",
	"registeredTrainerId": "67890",
	"isVetFeeProvider": false,
	"locationTypeId": null,
	"facilities": null,
	"service": null,
	"apprenticeshipTraineeship": false,
	"minimumFee": 2200,
	"maximumFee": 4100,
	"isVetFeeCourse": true,
	"isAvailableOnline": true,
	"isAvailablePartTime": true,
	"deliveryModes": ["In-person"]
	},
  
  
  // using groupby to group locations based on the items in the delivery modes values
  
   	// shows array of arrays
    const getDeliveryItems = items.map((item) => item.deliveryModes);
    console.log({ getDeliveryItems });

    //flatten all the arrays combined into one array and sort each one by their name key
    const flattened = items.flatMap((item) => item.deliveryModes.map((mode) => ({ ...item, mode }))).sort((a, b) => a.name.localeCompare(b.name));

    console.log({ flattened });

    // use grouping to separate out by a new mode key
    let modesGrouped = Object.groupBy(flattened, ({ mode }) => mode);
    console.log({ modesGrouped });
	// In-person: Array(5), Online: Array(4), Hybrid: Array(1)}

    Object.keys(modesGrouped).forEach((key) => {
        // remove the mode key by returing ...rest
        modesGrouped[key] = modesGrouped[key].map(({ mode, ...rest }) => rest);
    });

    console.log({ modesGrouped }); //

   // destructuring
   const { Hybrid: hybrid, ["In-person"]: inPerson, Online: online } = modesGrouped;
   console.log({ hybrid, inPerson, online });







// another example

const apprenticeshipValues = Object.groupBy(items, ({ apprenticeshipTraineeship }) => apprenticeshipTraineeship);

        console.log(apprenticeshipValues[true]);
        console.log(apprenticeshipValues[false]);

        // // desctructuring the objects into an array
        const { true: apprenticeshipTraineeship = [],
               false: nonapprenticeshipTraineeship = [] } = apprenticeshipValues;
        
		console.log({ apprenticeshipTraineeship });
        console.log({ nonapprenticeshipTraineeship });