Use the d3.max and d3.min Functions to Find Minimum and Maximum Values in a Dataset

Tell us what’s happening:

I am not getting right output,
is my logic is correct ??
anyone please review it.

Your code so far

    const positionData = [[1, 7, -4],[6, 3, 8],[2, 8, 3]]
    // Add your code below this line
    d3.max(positionData, (d) => d[0][3])
    const output = positionData ; // Change this line
    // Add your code above this line"body")

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36.

Link to the challenge:

This worked for me:
const maxX = d3.max(positionData, (d) => d[1]);
const output = maxX; // Change this line