find the median of all keys in a map in typescript

To find the median of all keys in a TypeScript Map, you can follow these steps:

1. Get all the keys from the Map using the keys() method.
2. Sort the keys in ascending order using the sort() method.
3. Find the midpoint of the sorted keys. If the number of keys is even, the median will be the average of the two middle values. If the number of keys is odd, the median will be the middle value.

Here's the code that implements these steps:

index.ts
function findMedianOfMapKeys(map: Map<any, any>): number {
  const keysArray = [...map.keys()];
  const sortedKeys = keysArray.sort();
  const numOfKeys = sortedKeys.length;
  const midIndex = Math.floor(numOfKeys / 2);

  if (numOfKeys % 2 === 0) {
    const median = (sortedKeys[midIndex - 1] + sortedKeys[midIndex]) / 2;
    return median;
  } else {
    const median = sortedKeys[midIndex];
    return median;
  }
}
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This function takes a Map and returns the median value of all the keys in the Map. It first converts the Map keys to an array using the spread syntax ([...map.keys()]) and then sorts them using the sort() method. It then calculates the index of the middle element and checks whether the number of keys is even or odd to determine the median value. Finally, it returns the median value.