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<!DOCTYPE html> <html> <head> <title>Let's Coding Example</title> </head> <body> <div id="html-div"> </div> <script> // Creating a Symbol let idSymbol = Symbol("id"); // Using Symbols as object property keys let user = { [idSymbol]: 123, name: "Alice" }; console.log(user[idSymbol]); // Access the property using the Symbol // Checking for the existence of a Symbol property console.log(idSymbol in user); // true // Getting the description of a Symbol console.log(idSymbol.description); // "id" </script> </body> </html>
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