Answers for "js check if an object doesn't has a key"

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

javascript if object has key

if('key' in object)

Posted by: Guest on March-22-2021

js check if object key exists

var obj = { key: undefined };
obj["key"] !== undefined // false, but the key exists!

Posted by: Guest on July-23-2020

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