執行 ❯
建立您
自己的
網站
×
更改方向
儲存程式碼
更改主題，深色/淺色
前往 Spaces
<!DOCTYPE html> <html> <body> <h1>JavaScript Object</h1> <h2>The defineProperty() Method</h2> <p>This example adds a new property to an object.</p> <p id="demo"></p> <script> // Create an Object: const person = { firstName: "John", lastName: "Doe", language: "EN" }; // Add a Property Object.defineProperty(person, "year", {value:"2008"}) // Display the Property document.getElementById("demo").innerHTML = person.year; </script> </body> </html>
