112 lines
4.4 KiB
HTML
112 lines
4.4 KiB
HTML
<!doctype html>
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<html lang="de">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Übung 35: Reichweite & Verbrauch, Teil 3</title>
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<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" />
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</head>
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<body>
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<main>
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<div class="container py-5">
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<div class="alert alert-primary">
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<h1>Übung 35: Reichweite & Verbrauch, Teil 3</h1>
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<p>
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Überarbeiten Sie Reichweite & Verbrauch, Teil 2 (Übung 18). Erstellen Sie passende Funktionen, die die
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Benutzereingaben zurückgeben.
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</p>
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</div>
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</div>
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<section class="section-calculator">
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<div class="container">
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<form class="form-calculator" method="get">
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<div class="row">
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<div class="col-12 col-sm-6">
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<div class="mb-3">
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<label for="input-strecke" class="form-label">Strecke</label>
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<input type="number" class="form-control" name="strecke" id="input-strecke" />
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</div>
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</div>
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<div class="col-12 col-sm-6">
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<div class="mb-3">
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<label for="input-benzinmenge" class="form-label">verbrauchte Benzinmenge</label>
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<input type="number" class="form-control" name="benzinmenge" id="input-benzinmenge" />
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</div>
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</div>
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</div>
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<!-- ▲ /.row ▲ -->
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<div class="row">
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<div class="col">
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<div class="mb-3">
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<label for="input-tankgroesse" class="form-label">Tankgröße</label>
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<input type="number" class="form-control" name="tangroesse" id="input-tankgroesse" />
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</div>
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</div>
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</div>
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<!-- ▲ /.row ▲ -->
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<div class="row">
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<div class="col">
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<!-- <input type="submit" value="Rechnen" class="btn btn-dark button-calculate" /> -->
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<button type="submit" class="btn btn-dark button-calculate">Rechnen</button>
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</div>
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</div>
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</form>
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<div class="alert alert-secondary my-3" id="output"></div>
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<div class="alert alert-secondary my-3" id="output2"></div>
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</div>
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</section>
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</main>
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<script>
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'use strict';
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// DOM & Variabendeklaration ==
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const formCalculatorEl = document.querySelector('.form-calculator');
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const outputAEl = document.querySelector('#output');
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const outputBEl = document.querySelector('#output2');
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const streckeEl = document.querySelector('input[name="strecke"]');
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const benzinMengeEl = document.querySelector('input[name="benzinmenge"]');
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const tankGroesseEl = document.querySelector('input[name="tangroesse"]');
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// 1. Schreiben Sie ein Programm zur Kraftstoffverbrauchsberechnung für Pkws.
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//const benzinMenge = prompt('Geben Sie die verbrauchte Benzinmenge an!');
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//const strecke = prompt('Geben Sie die Strecke an!');
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// Funktionen =========
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const calcBenzinMenge = (drivenKm, usedFuelAmount) => {
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if (isNaN(drivenKm) || isNaN(usedFuelAmount)) {
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return NaN;
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}
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const fuelPer100Km = (usedFuelAmount / drivenKm) * 100;
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return fuelPer100Km;
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};
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const calcStrecke = (drivenKm, usedFuelAmount, fuelTankVolume) => {
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if (isNaN(drivenKm) || isNaN(usedFuelAmount) || isNaN(fuelTankVolume)) {
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return NaN;
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}
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const maximumRange = (fuelTankVolume * drivenKm) / usedFuelAmount;
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return maximumRange;
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};
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// EventHandler =======
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const onSubmit = (e) => {
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e.preventDefault();
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const strecke = Number(streckeEl.value);
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const benzinMenge = Number(benzinMengeEl.value);
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const tankGroesse = Number(tankGroesseEl.value);
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outputAEl.textContent = `Verbrauch/100km: ${calcBenzinMenge(strecke, benzinMenge).toFixed(1)}l`;
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outputBEl.textContent = `Stecke: ${calcStrecke(strecke, benzinMenge, tankGroesse).toFixed(1)}km`;
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};
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formCalculatorEl.addEventListener('submit', onSubmit); // onSumbit = funktionsreferenz
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</script>
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</body>
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</html>
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