Description
As previously discussed, JSON object is utilized to hold keys and values, the following is an example of the JSON object.
[html]
{
"SPlessons":
{
"name": "Enni",
"ID": 513,
"Tutorial": "JAVA",
"Registered": true
}
}
[/html]
Following is the syntax to write the
Keys and values are separated with colon and keys are strings and values are the types of JSON, each information will be separated by comma. The "{" indicates the JSON object. Following is the image to understand objects in the code.
JSON objects.
var JSONObj = { };
While representing a string value needs to be written in double quotes as follows.
[html]
{
"Product": "Splessons",
"Email": "support@splessons.com"
}
[/html]
JSON underpins numbers in double precision floating-point manner.
[html]
{
"integer": 34,
"fraction": .2145,
"exponent": 6.61789e+0
}
[/html]
JSON underpins boolean values also.
[html]
{
"first": true,
"second": false
}
[/html]
In JSON it is possible to create objects inside the another objects as follows.
[html]
{
"firstName": "Sachin",
"lastName": "Tendulkar",
"age": 37,
"address" : {
"streetAddress": "Plot-6, Mohan Nagar",
"city": "Bangra",
"state": "Mubbai",
"postalCode": "201007"
}
}
[/html]
Example
Following is the code.
[html]
<html>
<head>
<title>Creating Object JSON with JavaScript</title>
<script language = "javascript" >
var JSONObj = { "name" : "splessons.com", "year" : 2015 };
document.write("<h1>JSON with JavaScript example</h1>");
document.write("<br>");
document.write("<h3>Website Name = "+JSONObj.name+"</h3>");
document.write("<h3>Year = "+JSONObj.year+"</h3>");
</script>
</head>
<body>
</body>
</html>
[/html]
Where 
Output: Now compile the code result will be as follows.
document.write() is the method to read the completely and splessons.com and 2015 are the values , these values are going to be retrieved by the JSONObj.name, JSONObj.year. Following is an image description of the code.
Key Points
- An object of JSON holds key/value pair.
- In JSON keys and values will be separated by a comma.
- An object of JSON will be represented with the curly brace
{.