To remove a property from a JavaScript object, use the delete keyword. You can try to run the following code to learn how to remove a property
Example
Live Demo
<!DOCTYPE html> <html> <body> <p id="demo"></p> <script> var cricketer = { name:"Amit", rank:1, points: 150 }; delete cricketer.rank; document.getElementById("demo").innerHTML = cricketer.name + " has " + cricketer.rank + " rank."; </script> </body> </html>