Answers for "how to check if key does not exists in object javascript"

javascript does key exist

var person={"name":"Billy","age":20}
person.hasOwnProperty("name"); // true
person.hasOwnProperty("sex"); // false

Posted by: Guest on July-22-2019

check if a key exists in an object javascript

"key" in obj // true, regardless of the actual value

Posted by: Guest on March-30-2020

Code answers related to "how to check if key does not exists in object javascript"