Learn Advanced Array Methods by Building a Statistics Calculator - Step 15

JavaScript
1

Tell us what’s happening:

Step 15

You can actually clean this logic up a bit. Using the implicit return of an arrow function, you can directly return the value of the .reduce() method divided by the length of the array, without having to assign any variables.
Update your getMean function as described above.

The code at the beginning is as below

const getMean = (array) => {
  const sum = array.reduce((acc, el) => acc + el, 0);
  const mean = sum / array.length;
  return mean;
}

Below is my answer but it does not pass. I also tried log e.g. console.log(getMean([2,3])) and the code is working well to return the average from the array.
The hint is “You should use implicit return syntax to directly return the result of reduce divided by the array length.”

Your code so far

const getMean = (array) => {
return array.reduce((acc, el) => acc + el, 0) / array.length;
}

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Challenge Information:

Learn Advanced Array Methods by Building a Statistics Calculator - Step 15

4 Likes
2

You aren’t using an implicit return. The {} prevents an implicit return.

6 Likes
3

the last } must be way down in the screen…just it.
the code is right

4

The code was not correct, per the instructions

5

Thank you, straight to the point!