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<html><body><h1>JavaScript Variables</h1><p>The result of adding "John" + " " + "Doe" is:</p><p id="demo"></p><script>let x = "John" + " " + "Doe";document.getElementById("demo").innerHTML = x;</script></body></html><html><body><h1>JavaScript Variables</h1><p>The result of adding "John" + " " + "Doe" is:</p><p id="demo"></p><script>let x = "John" + " " + "Doe";document.getElementById("demo").innerHTML = x;</script></body></html>