HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Array every() — form fields</title>
</head>
<body>
  <h1>every() — all fields filled?</h1>
  <pre id="out"></pre>
  <script>
    (function () {
      var fields = ["John", "Doe", "john.doe@example.com"];
      var incomplete = ["John", "  ", "john.doe@example.com"];
      var allFilled = fields.every(function (v) {
        return v.trim() !== "";
      });
      var hasBlank = incomplete.every(function (v) {
        return v.trim() !== "";
      });
      document.getElementById("out").textContent =
        "valid: " + allFilled + "\n" +
        "incomplete: " + hasBlank;
    })();
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

JavaScript Array every() — form fields (Try It)