比较两个arrays的对象，判断第一个数组的日期是否在第二个数组Javascript的指定范围内

Question

let array1 = [
    {
        start_date: 2022-12-01,
        end_date: 2022-12-07,
        status: ready,
    },
    {
        start_date: 2022-12-04,
        end_date: 2022-12-10,
        status: ready,
    },
    
   {
        start_date: 2022-12-8,
        end_date: 2022-12-14,
        status: ready,
    },
    {
        start_date: 2022-12-11,
        end_date: 2022-12-17,
        status: ready,
    },
   {
        start_date: 2022-12-15,
        end_date: 2022-12-21,
        status: overlap,
    },

   {
        start_date: 2022-12-18,
        end_date: 2022-12-24,
        status: overlap,
    },

   {
        start_date: 2022-12-22,
        end_date: 2022-12-28,
        status: overlap,
    },
    {
        start_date: 2022-12-25,
        end_date: 2022-12-31,
        status: overlap,
    },
    
    {
        start_date: 2022-12-18,
        end_date: 2022-12-31,
        status: match,
    },

    
];




let array2 = [
    {
        start_date: 2022-12-18,
        end_date: 2022-12-31
    }
];

I have two array of objects and

1. would like to compare start date of array 1 against array 2 to see if array 1 start date is within the range of array 2 start date and end date

then also compare end date of array 1 against array 2 to see if array 1 end date is within the range of array 2 start date and end date

if both the condition above are met then validate if array 1 status is overlap.

eg: Dec 15-21 (array 1 - start date -end date ) Dec 18-31 (from array 2 start date -end date)

2. if array1 start date is outside the range of array 2 start and end date, then validate array 1 status is ready. and if array1 end date is outside the range of array 2 start and end date, then validate array 1 status is ready.

eg: Dec 01-07 (array 1 - start date -end date ) Dec 18-31 (from array 2 start date -end date)

3. and if array 1 start date matches array 2 start date and array 1 end date matches array 2 end date then validate array 1 status is match,

eg: Dec 18-31 (array 1 - start date -end date ) Dec 18-31 (from array 2 start date -end date)

Can you please advise how to achieve this using javascript.

can you please advise if something like this is possible or any better solution, if there is a way to validate the status is either overlap/ready/available within every block or make every block return the status instead of just boolean value - true/false

let compareTwoArrayOfObjects = (
    array1,
    array2
) => {
    return (
        array2.every((element_2) =>
            array1.every(          
                (element_1) => {

                    if(element_2.start_date < element_1.start_date && element_1.start_date < element_2.end_date) return OVERLAP;
                    if(element_2.start_date < element_1.end_date && element_1.end_date < element_2.end_date) return OVERLAP;
                    
                     
>! if(element_2.start_date == element_1.start_date && element_1.start_date == element_2.end_date) return MATCH;
>! 
>! 
>! if(element_2.start_date > element_1.start_date && element_1.start_date > element_2.end_date) return ready;
>! if(element_2.start_date > element_1.end_date && element_1.end_date > element_2.end_date) return ready;
>!                 }
            )
        )
    );
};

Answer 1

This should do the trick, the first if is just comparing if the time is the same, the second if statement is a condition when any of the first array date is within range of the second array or if any of the dates on the second array is within the range of the current selected element of the first array, the last if is a condition when the first date is outside the range of second date:

 let array1 = [{ start_date: "2022-12-01", end_date: "2022-12-07", }, { start_date: "2022-12-04", end_date: "2022-12-10", }, { start_date: "2022-12-8", end_date: "2022-12-14", }, { start_date: "2022-12-11", end_date: "2022-12-17", }, { start_date: "2022-12-15", end_date: "2022-12-21", }, { start_date: "2022-12-18", end_date: "2022-12-24", }, { start_date: "2022-12-22", end_date: "2022-12-28", }, { start_date: "2022-12-25", end_date: "2022-12-31", }, { start_date: "2022-12-18", end_date: "2022-12-31", }, ]; let array2 = [{ start_date: "2022-12-18", end_date: "2022-12-31" }]; function compareTwoArrayOfObjects(array1, array2) { const start2 = new Date(array2[0].start_date); const end2 = new Date(array2[0].end_date); return array1.map(elm_arr1 => { const start1 = new Date(elm_arr1.start_date); const end1 = new Date(elm_arr1.end_date); let status; if (start1.getTime() === start2.getTime() && end1.getTime() === end2.getTime()) { status = "match"; } else if ((start1 > start2 && start1 < end2) || (end1 > start2 && end1 < end2) || (start2 > start1 && start2 < end1) || (end2 > start1 && end2 < end1)) { status = "overlap"; } else if ((start1 < start2 && end1 < start2) || (start1 > end2 && end1 > end2)) { status = "ready"; } return {...elm_arr1, status, }; }); } console.log(compareTwoArrayOfObjects(array1, array2));