Syntax Check Quiz
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Questions and Answers

Which of the following is an incorrect JSON syntax?

  • { "name": 'John', "age": 30 } (correct)
  • { 'name': 'John', 'age': 30 }
  • { 'name': "John", 'age': 30 }
  • { "name": "John", "age": 30 }

    • Which of the following is a valid JSON array declaration?

  • (1, 2, 3, 4)
  • [1, 2, 3, 4] (correct)
  • {1, 2, 3, 4}
  • [1: 2, 3: 4]

    • What is the correct way to represent a null value in JSON?

  • ""
  • 'null'
  • {}
  • null (correct)

    • Study Notes

    JSON Syntax

    • undef and nan are not valid JSON syntax.
    • null is the correct way to represent a null value in JSON.

    JSON Array Declaration

    • A valid JSON array declaration starts with [ and ends with ], and elements are separated by commas, like this: [element1, element2, ..., elementN].

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    Description

    Test your syntax knowledge with this quiz that challenges you to identify incorrect syntax among given options.

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