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<html><body><h2>JavaScript let</h2><p>Redeclaring a variable with <b>let</b>, in another scope, or in another block, is allowed:</p><p id="demo"></p><script>let x = 2; // Allowed{ let x = 3; // Allowed}{ let x = 4; // Allowed}document.getElementById("demo").innerHTML = x;</script></body></html>