calculadora-pesos-notas/index.html at main · gabriersdev/calculadora-pesos-notas · GitHub

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<!DOCTYPE html>
<html lang="pt-BR" data-bs-theme="dark">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Calculadora de Média Ponderada</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;700&display=swap" rel="stylesheet">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons/font/bootstrap-icons.css">
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
    <style>
      body {
      font-family: 'Inter', sans-serif;
      }
    </style>
  </head>
  <body class="container py-5">
    <div class="card p-4 shadow-lg">
      <h2 class="text-center mb-4">Calculadora de Média Ponderada</h2>
      <div id="inputs-container">
        <div class="row g-2 mb-2 input-group">
          <div class="col-md-5">
            <input type="number" class="form-control value-input" placeholder="Valor" required>
          </div>
          <div class="col-md-5">
            <input type="number" class="form-control weight-input" placeholder="Peso" required>
          </div>
          <div class="col-md-2">
            <button class="btn btn-danger remove-field" onclick="removeField(this)">
            <i class="bi bi-trash"></i>
            </button>
            <button class="btn btn-success" onclick="addField()">
            <i class="bi bi-plus-lg"></i> Adicionar
            </button>
          </div>
        </div>
      </div>
      <button class="btn btn-primary w-100 mt-3" onclick="calculateAverage()">Calcular Média</button>
      <h4 class="text-center mt-3 fs-3" id="result"></h4>
    </div>
    <script>
      function addField() {
          const container = document.getElementById('inputs-container');
          const div = document.createElement('div');
          div.classList.add('row', 'g-2', 'mb-2', 'input-group');
          div.innerHTML = `
                  <div class="col-md-5">
                      <input type="number" class="form-control value-input" placeholder="Valor" required>
                  </div>
                  <div class="col-md-5">
                      <input type="number" class="form-control weight-input" placeholder="Peso" required>
                  </div>
                  <div class="col-md-2">
                      <button class="btn btn-danger remove-field" onclick="removeField(this)">
                          <i class="bi bi-trash"></i>
                      </button>
                                            <button class="btn btn-success" onclick="addField()">
                          <i class="bi bi-plus-lg"></i> Adicionar
                      </button>
                  </div>
              `;
          container.appendChild(div);
      }

      function removeField(button) {
          button.parentElement.parentElement.remove();
      }

      function calculateAverage() {
          let values = document.querySelectorAll('.value-input');
          let weights = document.querySelectorAll('.weight-input');
          let totalValue = 0, totalWeight = 0;

          values.forEach((value, index) => {
              let val = parseFloat(value.value);
              let weight = parseFloat(weights[index]?.value || 0);
              if (!isNaN(val) && !isNaN(weight) && weight > 0) {
                  totalValue += val * weight;
                  totalWeight += weight;
              }
          });

          let result = totalWeight > 0 ? (totalValue / totalWeight).toFixed(2) : "Erro: Insira valores válidos";
          document.getElementById('result').innerText = `Média Ponderada: ${result}`;
      }
    </script>
  </body>
</html>