[Solved] JavaScript, find lowest value in array of objects

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You have 2 options:

  1. the faster one- a simple loop where you always keep the lowest one you found so far: 

    let lowest = arr[0];
for(let i=1; i<0; i++)
{
    if(arr[i] < lowest) // I used < for the example, enter your comparison logic here
     lowest = arr[i];
}

  2. The less efficient way, but might help you later in your code: sorting the array using ‘Array.sort’ method: 

    array.sort( (el1, el2) => {
  if(el1 > el2) // again- I used > sign, put the actual comparison logic here, i.g: el1.coordinateid[0] > el2.coordinateid[0] and so on
    return -1;
  else return 1;
});

Note that the sort array work like that: you give it a callback function which gets 2 elements of the array. If you return -1 it means the first element that passed should come before the 2nd element when they are put back in the sorted array, 0 means they’re equal and 1 means that the 2nd element passed to the function should come first.
See the sort method link above for more explanation.

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solved JavaScript, find lowest value in array of objects