• Speiser0@feddit.de
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    1 year ago

    I see how you censored at “undefined”. Thanks. The actual value could easily kill anyone who sees it.

    • ipkpjersi@lemmy.one
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      1 year ago

      Depends on the programming language. In JavaScript, it literally means that like the key or variable does not actually exist. Whereas like in C/C++, writing random bytes to random memory addresses would result in “undefined behaviour” which means basically anything could happen.

      • crystal@feddit.de
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        1 year ago

        In Javascript you can do let a = undefined, defining the variale a as undefined.

        A significant difference to defining it as null is that typeof null == "object", while typeof undefined == "undefined".