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showing results for - "javascript if array key exists"
Luisa
21 Jul 2019
1var person={"name":"Billy","age":20}
2person.hasOwnProperty("name"); // true
3person.hasOwnProperty("sex"); // false
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Solal
29 Jun 2016
1if (obj.hasOwnProperty("key1")) {
2  ...
3}
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Santino
05 Nov 2017
1"key" in obj // true, regardless of the actual value
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