JavaScript Data Types Quiz

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6 Questions

Which one is not a data type?

Function

Which one of these is not a primitive data type?

Array

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

Void

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

public

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

int

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

String

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.

Test your knowledge of data types in JavaScript by identifying which option is not a valid data type.

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