JavaScript Basics I
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JavaScript Basics I

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@FestiveDenver

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Questions and Answers

Which of the following is NOT a primitive data type in most programming languages?

  • Array (correct)
  • Integer
  • String
  • Character

    • In JavaScript, how is a single character represented since it lacks a specific char data type?

  • As a symbol
  • As an integer
  • As a single-character string (correct)
  • As a number

    • What type of number does JavaScript use for both integers and floats?

  • Character
  • Boolean
  • Number (correct)
  • String

    • What does it mean for primitive data types to be immutable?

    <p>They can't be changed or altered</p> Signup and view all the answers

    Which of the following is an example of a float?

    <p>2.5</p> Signup and view all the answers

    What are the two main composite data types in JavaScript?

    <p>Booleans and Symbols</p> Signup and view all the answers

    Which of the following values is considered a Boolean?

    <p>true</p> Signup and view all the answers

    In programming languages, what is the role of a data type?

    <p>To describe the data a value contains</p> Signup and view all the answers

    Which composite data type in JavaScript can be updated after creation?

    <p>Object</p> Signup and view all the answers

    What does the term 'undefined' refer to in JavaScript?

    <p>A type that does not exist</p> Signup and view all the answers

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