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Last edited Feb 27, 2018

Created on Feb 27, 2018

This example presents two JavaScript practice problems embedded in an HTML page with no SVG or visual output. The first problem uses the d3.mean() function from d3.v4 to calculate and log the average population of four U.S. states (Alaska, Virginia, Arizona, Florida) stored in a states array. The second problem asks the viewer to compute the same average without d3.mean(), relying instead on the browser’s developer console to observe results. The code uses the D3.js library for the mean calculation and plain JavaScript for array handling, with no rendering or data visualization involved.

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