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<!DOCTYPE html> <html> <body> <h1>L'objet Reflect</h1> <h2>La méthode ownKeys()</h2> <p id="demo"></p> <script> const sym = Symbol("secret"); const obj = { a: 1, [sym]: 2 }; let keys = Reflect.ownKeys(obj); let text = "Object keys: <br>"; keys.forEach(myFunction); function myFunction(valeur, index, tableau) { let typ = typeof array[index]; let add = typ + " "; if (typ != "symbol") { ajouter += valeur; } else { add += "secret" }; text += add + "<br>"; } document.getElementById("demo").innerHTML = texte; </script> </body> </html>