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solution #2237

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f46dd23
solution
Apr 7, 2026
6316e7e
added requested changes
Apr 7, 2026
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22 changes: 21 additions & 1 deletion src/scripts/main.js
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Original file line number Diff line number Diff line change
@@ -1,3 +1,23 @@
'use strict';

// write your code here
const populationSpans = document.querySelectorAll('.population');
const populationArray = Array.from(populationSpans);
const populationNumbers = populationArray.map((span) => {
const text = span.textContent;
const cleanText = text.replace(/[^\d]/g, '');
const number = Number(cleanText);

return number;
});

const total = populationNumbers.reduce((acc, num) => {
return acc + num;
}, 0);
const average = Math.round(total / populationNumbers.length);
const totalFormatted = total.toLocaleString();
const averageFormatted = average.toLocaleString();
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@mateacademy-ai-mentor mateacademy-ai-mentor Apr 7, 2026

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The task requires the calculated numbers to have the 'same numeric style as populations presented'. The presented populations are whole numbers. When you calculate the average, it's likely to be a floating-point number (e.g., 12345.67). Using toLocaleString() directly on this will result in a formatted string with decimals (e.g., "12,345.67"), which doesn't match the style of the other population figures.

Consider rounding the average to the nearest whole number before formatting it. Math.round() would be a good function to use for this.

const totalSpan = document.querySelector('.total-population');
const averageSpan = document.querySelector('.average-population');

totalSpan.textContent = totalFormatted;
averageSpan.textContent = averageFormatted;
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