JavaScript Data Types Quiz

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Questions and Answers

Which one is not a data type?

  • Boolean
  • Function (correct)
  • String
  • Integer

Which one of these is not a primitive data type?

  • Boolean
  • Array (correct)
  • String
  • Number

Which one of these is not a valid data type in JavaScript?

  • Void (correct)
  • Undefined
  • Null
  • NaN

Which of the following is a valid access modifier in Java?

<p>public (A)</p> Signup and view all the answers

Which data type is used to store whole numbers in Java?

<p>int (B)</p> Signup and view all the answers

Which of the following is a reference data type in Java?

<p>String (C)</p> Signup and view all the answers

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Study Notes

Data Types in JavaScript and Java

  • NULL is not a primitive data type in JavaScript.
  • NULL is not a valid data type in JavaScript.
  • Private is a valid access modifier in Java.
  • int is the data type used to store whole numbers in Java.
  • Array is a reference data type in Java.

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