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

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


Hints

Hint 1

Use the d3.max() function.

Hint 2

Use a callback function.

Hint 3

Check for the second element in the callback function’s array.


Solutions

Solution 1 (Click to Show/Hide)

To solve the solution, you code should look like this, this would check for the z co-ordinate i.e. the third element in the array which would be at an index of 2:

<body>
  <script>
    const positionData = [[1, 7, -4],[6, 3, 8],[2, 8, 3]]
    const output = d3.max(positionData, (d) => d[2]);
      d3.select("body")
      .append("h2")
      .text(output)
  </script>
</body>
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