Multiple choice technology web technology

To what value will the following expressions evaluate in the JavaScript console? typeof typeof null

  1. NaN

  2. null

  3. string

  4. None of the above

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C Correct answer
Explanation

The first typeof evaluates the type of null, which is "object". Applying typeof again to that string yields "string". Hence the final result is the string "string", which is correctly marked as the true option. The other choices do not match the double‑typeof evaluation.