Answers for "how to check if array key exists in javascript"

javascript if array key exists

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

Posted by: Guest on July-22-2019

javascript hashtable contains key

if (obj.hasOwnProperty("key1")) {
  ...
}

Posted by: Guest on March-01-2020

Code answers related to "how to check if array key exists in javascript"