generated from cuisine/gratin-dauphinois
42 lines
1.4 KiB
HTML
42 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<html lang="fr">
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<head>
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<meta charset="UTF-8">
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<title>Gratin Dauphinois</title>
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</head>
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<body>
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<h1>Recette de Gratin Dauphinois</h1>
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<label for="portions">Nombre de personnes :</label>
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<input type="number" id="portions" value="4" min="1" onchange="updateQuantities()">
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<h2>Ingrédients</h2>
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<ul>
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<li><span id="pommes">1</span> kg de pommes de terre</li>
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<li><span id="creme">25</span> cl de crème fraîche épaisse</li>
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<li><span id="lait">25</span> cl de lait entier</li>
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<li><span id="ail">1</span> gousse d'ail</li>
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<li><span id="fromage">60</span> g de fromage râpé</li>
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</ul>
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<script>
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const base = {
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pommes: 1, // kg
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creme: 25, // cl
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lait: 25, // cl
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ail: 1, // gousse
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fromage: 60 // g
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};
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function updateQuantities() {
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const portions = document.getElementById("portions").value;
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document.getElementById("pommes").textContent = (base.pommes * portions / 4).toFixed(2);
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document.getElementById("creme").textContent = (base.creme * portions / 4).toFixed(2);
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document.getElementById("lait").textContent = (base.lait * portions / 4).toFixed(2);
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document.getElementById("ail").textContent = Math.ceil(base.ail * portions / 4);
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document.getElementById("fromage").textContent = (base.fromage * portions / 4).toFixed(0);
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}
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</script>
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</body>
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</html>
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