How do I check if an object has a specific key in JavaScript?

Asked 2 years ago, Updated 2 years ago, 71 views

Which of these is the right way?

if (myObj['key'] == undefined)

if (myObj['key'] == null)

if (myObj['key'])

javascript object

2022-09-22 14:33

1 Answers

Try writing the in operator in JavaScript. if ('key' in myObj)

2022-09-22 14:33

If you have any answers or tips

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