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<!DOCTYPE html> <html> <body> <h1>JavaScript Sets</h1> <h2>The add() Method</h2> <p>The add() method adds values to a set:</p> <p id="demo"></p> <script> // Create a Set const letters = new Set(); // Add Values to the Set letters.add("a"); letters.add("b"); letters.add("c"); // Display the Size document.getElementById("demo").innerHTML = "The set has " + letters.size + " values."; </script> </body> <!-- /js/tryit.asp?filename=tryjs_set_create_values Thu, 06 Feb 2025 19:15:27 GMT --> </html>
