”;
Creating Simple Objects
JSON objects can be created with JavaScript. Let us see the various ways of creating JSON objects using JavaScript −
- Creation of an empty Object −
var JSONObj = {};
- Creation of a new Object −
var JSONObj = new Object();
-
Creation of an object with attribute bookname with value in string, attribute price with numeric value. Attribute is accessed by using ”.” Operator −
var JSONObj = { "bookname ":"VB BLACK BOOK", "price":500 };
This is an example that shows creation of an object in javascript using JSON, save the below code as json_object.htm −
<html>
<head>
<title>Creating Object JSON with JavaScript</title>
<script language = "javascript" >
var JSONObj = { "name" : "tutorialspoint.com", "year" : 2005 };
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>
Now let”s try to open Json Object using IE or any other javaScript enabled browser. It produces the following result −
Creating Array Objects
The following example shows creation of an array object in javascript using JSON, save the below code as json_array_object.htm −
<html>
<head>
<title>Creation of array object in javascript using JSON</title>
<script language = "javascript" >
document.writeln("<h2>JSON array object</h2>");
var books = { "Pascal" : [
{ "Name" : "Pascal Made Simple", "price" : 700 },
{ "Name" : "Guide to Pascal", "price" : 400 }],
"Scala" : [
{ "Name" : "Scala for the Impatient", "price" : 1000 },
{ "Name" : "Scala in Depth", "price" : 1300 }]
}
var i = 0
document.writeln("<table border = ''2''><tr>");
for(i = 0;i<books.Pascal.length;i++) {
document.writeln("<td>");
document.writeln("<table border = ''1'' width = 100 >");
document.writeln("<tr><td><b>Name</b></td><td width = 50>" + books.Pascal[i].Name+"</td></tr>");
document.writeln("<tr><td><b>Price</b></td><td width = 50>" + books.Pascal[i].price +"</td></tr>");
document.writeln("</table>");
document.writeln("</td>");
}
for(i = 0;i<books.Scala.length;i++) {
document.writeln("<td>");
document.writeln("<table border = ''1'' width = 100 >");
document.writeln("<tr><td><b>Name</b></td><td width = 50>" + books.Scala[i].Name+"</td></tr>");
document.writeln("<tr><td><b>Price</b></td><td width = 50>" + books.Scala[i].price+"</td></tr>");
document.writeln("</table>");
document.writeln("</td>");
}
document.writeln("</tr></table>");
</script>
</head>
<body>
</body>
</html>
Now let”s try to open Json Array Object using IE or any other javaScript enabled browser. It produces the following result −
”;