dr_domi
30 lines
1.0 KiB
JavaScript
30 lines
1.0 KiB
JavaScript
document.getElementById('bmi-form').addEventListener('submit', function(e) {
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e.preventDefault();
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const height = document.getElementById('height').value;
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const weight = document.getElementById('weight').value;
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const resultDiv = document.getElementById('result');
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fetch('/calculate', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ height, weight })
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})
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.then(response => response.json())
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.then(data => {
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if (data.error) {
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resultDiv.style.display = 'block';
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resultDiv.style.color = '#cc0000';
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resultDiv.textContent = data.error;
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} else {
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resultDiv.style.display = 'block';
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resultDiv.style.color = '#003366';
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resultDiv.textContent = `Ваш BMI: ${data.bmi}`;
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}
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})
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.catch(() => {
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resultDiv.style.display = 'block';
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resultDiv.textContent = 'Ошибка соединения с сервером.';
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resultDiv.style.color = '#cc0000';
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});
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}); |