js dictionary contains key

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Josefa
06 Jan 2020
1var person={"name":"Billy","age":20}
2person.hasOwnProperty("name"); // true
3person.hasOwnProperty("sex"); // false
source
Louella
15 May 2017
1if (obj.hasOwnProperty("key1")) {
2  ...
3}
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Samuel
17 Jun 2017
1"key" in obj // true, regardless of the actual value
2
source
Iker
08 Jun 2016
1"key" in obj // true, regardless of the actual value
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