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Questions and Answers
Which of the following is an incorrect JSON syntax?
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?
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?
What is the correct way to represent a null value in JSON?
- ""
- 'null'
- {}
- null (correct)
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Study Notes
JSON Syntax
undefandnanare not valid JSON syntax.nullis 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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