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JavaScript Object Notation (JSON)

JSON is a standard format used to represent data as a structured object. Its major usage is to send data in websites through the http interactions and RESTful API. It is supported by all the major languages and is native to JavaScript. JSON is also used in configuration files, and is a powerful tool for database systems.

The format accepts 6 data types:

  • Booleans
  • Numbers
  • Strings
  • "null" value
  • Key-value objects (pairs)
  • Arrays

To declare a JSON object, we open curly brackets. To indicate that we are using an array, we use square brackets.

Example:

{
  "Company":"Adaltas",
  "Tags":"JSON",
  "Comments":["Interesting.", "I would like to check it out", "Nice tag description"]
}

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Mar 22, 2021

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