运行 ❯
获取您
自己的
网站
×
更改方向
保存代码
更改主题，深色/浅色
前往 Spaces
<!DOCTYPE html> <html> <body> <h2>JavaScript Object Properties</h2> <p>You can delete object properties with the delete keyword.</p> <p id="demo"></p> <script> var person = { firstname: "John", lastname: "Doe", age: 50, eyecolor: "blue" }; delete person.age; document.getElementById("demo").innerHTML = person.firstname + " is " + person.age + " years old."; </script> </body> </html>
