This example reads a CSV file of cardio fitness data and displays the first row as a JSON object in a preformatted block. The code imports the data with a custom CSV loader, coerces numeric fields like Age, Education, Usage, Fitness, Income, and Miles using unary plus operators, and then renders the result via a template literal in the container’s innerHTML. The visualization emphasizes the data structure rather than a chart, using no external libraries beyond the data import mechanism.