主页
JS 参考手册
JavaScript Object.defineProperty() 方法
tryjsref_object_defineproperty3
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <body> <h1>JavaSript Objects</h1> <h2>The defineProperty() Method</h2> <p>The defineProperty() method can define setters and getters:</p> <p id="demo"></p> <script> // Create an Object: const person = { firstName: "John", lastName : "Doe", language : "NO" }; // Change a Property: Object.defineProperty(person, "language", { get : function() { return language }, set : function(value) { language = value.toUpperCase()} }); // Change language person.language = "en"; // Display language document.getElementById("demo").innerHTML = person.language; </script> </body> </html>