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<!DOCTYPE html>
<html>
<body>
<h2>JavaScript Numbers</h2>
<p>A common mistake is to expect this result to be 30:</p>
<p id="demo"></p>
<script>
  var x = 10;
  var y = 20;
  document.getElementById("demo").innerHTML =
    "The result is: " + x + y;
</script>
</body>
<!-- /js/tryit.asp?filename=tryjs_numbers_add_strings3  Thu, 06 Feb 2025 18:15:24 GMT -->
</html>