JSON Basics Tutorial
JSON - Examples
JSON Useful Resources
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- JSON - Overview
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JSON - Examples
JSON Useful Resources
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JSON - Overview
JSON - Overview
JSON or JavaScript Object Notation is a pghtweight text-based open standard designed for human-readable data interchange. Conventions used by JSON are known to programmers, which include C, C++, Java, Python, Perl, etc.
JSON stands for JavaScript Object Notation.
The format was specified by Douglas Crockford.
It was designed for human-readable data interchange.
It has been extended from the JavaScript scripting language.
The filename extension is .json.
JSON Internet Media type is apppcation/json.
The Uniform Type Identifier is pubpc.json.
Uses of JSON
It is used while writing JavaScript based apppcations that includes browser extensions and websites.
JSON format is used for seriapzing and transmitting structured data over network connection.
It is primarily used to transmit data between a server and web apppcations.
Web services and APIs use JSON format to provide pubpc data.
It can be used with modern programming languages.
Characteristics of JSON
JSON is easy to read and write.
It is a pghtweight text-based interchange format.
JSON is language independent.
Simple Example in JSON
The following example shows how to use JSON to store information related to books based on their topic and edition.
{
"book": [
{
"id":"01",
"language": "Java",
"edition": "third",
"author": "Herbert Schildt"
},
{
"id":"07",
"language": "C++",
"edition": "second",
"author": "E.Balagurusamy"
}
]
}
After understanding the above program, we will try another example. Let s save the below code as json.htm −
<html>
<head>
<title>JSON example</title>
<script language = "javascript" >
var object1 = { "language" : "Java", "author" : "herbert schildt" };
document.write("<h1>JSON with JavaScript example</h1>");
document.write("<br>");
document.write("<h3>Language = " + object1.language+"</h3>");
document.write("<h3>Author = " + object1.author+"</h3>");
var object2 = { "language" : "C++", "author" : "E-Balagurusamy" };
document.write("<br>");
document.write("<h3>Language = " + object2.language+"</h3>");
document.write("<h3>Author = " + object2.author+"</h3>");
document.write("<hr />");
document.write(object2.language + " programming language can be studied " + "from book written by " + object2.author);
document.write("<hr />");
</script>
</head>
<body>
</body>
</html>
Now let s try to open json.htm using IE or any other javascript enabled browser that produces the following result −
You can refer to JSON Objects chapter for more information on JSON objects.
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