Ob'ektda kalit mavjudligini tekshiring. JavaScript

Ob'ektda kalit mavjudligini tekshiring. JavaScript



Operatorda foydalanish ob'ektida kalit mavjudligini tekshiring
JavaScript example code

JavaScript

  Output result
The key exists.
HasOwnProperty() yordamida obyektda kalit mavjudligini tekshiring.
JavaScript example code

JavaScript

  Output result
The key exists.


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