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fix NaN for bmi when divide-by-zero

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Karli
2025-09-08 01:02:42 +03:00
parent f01829de96
commit 57a998d215
2 changed files with 10 additions and 4 deletions
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2
app/home/(user)/_components/dashboard.tsx
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@@ -84,7 +84,7 @@ const cards = ({
}, },
{ {
title: 'dashboard:bmi', title: 'dashboard:bmi',
description: bmiFromMetric(weight || 0, height || 0).toString(), description: bmiFromMetric(weight || 0, height || 0)?.toString() ?? '-',
icon: <TrendingUp />, icon: <TrendingUp />,
iconBg: getBmiBackgroundColor(bmiStatus), iconBg: getBmiBackgroundColor(bmiStatus),
}, },

12
lib/utils.ts
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@@ -41,8 +41,12 @@ export function sortByDate<T>(
export const bmiFromMetric = (kg: number, cm: number) => { export const bmiFromMetric = (kg: number, cm: number) => {
const m = cm / 100; const m = cm / 100;
const bmi = kg / (m * m); const m2 = m * m;
return bmi ? Math.round(bmi) : NaN; if (m2 === 0) {
return null;
}
const bmi = kg / m2;
return !Number.isNaN(bmi) ? Math.round(bmi) : null;
}; };
export function getBmiStatus( export function getBmiStatus(
@@ -59,7 +63,9 @@ export function getBmiStatus(
) || null; ) || null;
const bmi = bmiFromMetric(params.weight, params.height); const bmi = bmiFromMetric(params.weight, params.height);
if (!thresholdByAge || Number.isNaN(bmi)) return null; if (!thresholdByAge || bmi === null) {
return null;
}
if (bmi > thresholdByAge.obesity_min) return BmiCategory.OBESE; if (bmi > thresholdByAge.obesity_min) return BmiCategory.OBESE;
if (bmi > thresholdByAge.strong_min) return BmiCategory.VERY_OVERWEIGHT; if (bmi > thresholdByAge.strong_min) return BmiCategory.VERY_OVERWEIGHT;