What are the steps to organize an array of objects by a specific key?

Question

What are the steps to organize an array of objects by a specific key?

Experimented with the following approach:

if (field == 'age') {

      if (this.sortedAge) {
        this.fltUsers.sort(function (a, b) {
          if (b.totalHours > a.totalHours) {
            return 1;
          }
        });

        this.sortedAge = false;

      } else {

        this.sortedAge = true;
        this.fltUsers.sort(function (a, b) {
          if (b.totalHours < a.totalHours) {
            return 1;
          }
        });

      }
    }

I have an array of objects where each object contains a property: totalHours.

The objective is to sort this array by the field totalHours in ascending or descending order upon clicking.

Unfortunately, my current implementation is not functioning as intended.

javascript angular typescript

Answer 1

Answer №1

When dealing with a straightforward comparator like the one in question, I typically adhere to a simple 1-line rule. In this case, the modification would look something like this:

this.fltUsers.sort((a,b) => b.totalHours < a.totalHours ? 1 : -1);

It is important to ensure that both 1 and -1 are included in the return statement for the comparator logic to function correctly.

Answer 2

When dealing with a straightforward comparator like the one in question, I typically adhere to a simple 1-line rule. In this case, the modification would look something like this:

this.fltUsers.sort((a,b) => b.totalHours < a.totalHours ? 1 : -1);

It is important to ensure that both 1 and -1 are included in the return statement for the comparator logic to function correctly.

Answer 3

Answer №2

This script is designed to sort the elements in the array.

function compareElements(x,y) {
      if (y.totalTime < x.totalTime)
        return -1;
      if (y.totalTime > x.totalTime)
        return 1;
      return 0;
}

elementsArray.sort(compareElements);

Answer 4

This script is designed to sort the elements in the array.

function compareElements(x,y) {
      if (y.totalTime < x.totalTime)
        return -1;
      if (y.totalTime > x.totalTime)
        return 1;
      return 0;
}

elementsArray.sort(compareElements);

What are the steps to organize an array of objects by a specific key?

Answer №1

Answer №2

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