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<html><body><h1>JavaScript Operators</h1><h2>The ... Operator</h2><p>The spread operator (...) can be used to join arrays:</p><p id="demo"></p><script>const arr1 = [1, 2, 3];const arr2 = [4, 5, 6];const arr3 = [arr1, arr2];document.getElementById("demo").innerHTML = arr3; </script></body></html>