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<html><body><h1>JavaScript Variables</h1><p id="demo"></p><script>// Create and display a variable:let person = "John Doe";document.getElementById("demo").innerHTML = person;</script></body></html><html><body><h1>JavaScript Variables</h1><p id="demo"></p><script>// Create and display a variable:let person = "John Doe";document.getElementById("demo").innerHTML = person;</script></body></html>