Answers for "how to check if a key exist in object js"

16

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
17

how to check if object has key javascript

myObj.hasOwnProperty('key') // it checks object for particular key and not on prototype
Posted by: Guest on March-28-2020

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