编辑代码:
查看结果 »
试一试 - ©
w3ii.com
<!DOCTYPE html> <html> <body> <p>The delete operator deletes a property from an object.</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>