Introduction
Environment Setup
What is JavaScript vs ES-5 or ES-6
JavaScript Syntax
JavaScript Comments
JavaScript Use Strict
JavaScript Variables
JavaScript Reserved Words
JavaScript Scope
JavaScript Data Types
JavaScript Function
Function overloading not possible in JavaScript
JavaScript Arrow Function
JavaScript Numbers
JavaScript Number Methods
JavaScript String
JavaScript String Methods
JavaScript if else and else if
JavaScript Comparison and Logical Operators
JavaScript Arrays
JavaScript Sorting Arrays
JavaScript Array Iteration Methods
JavaScript for loop
JavaScript Let keyword
JavaScript Const
JavaScript Objects
JavaScript Object Methods
JavaScript ES5 Object Methods
JavaScript Object Accessors
JavaScript Math Object
JavaScript Random
JavaScript this Keyword
JavaScript Date Objects and Date Formats
JavaScript Classes
JavaScript While Loop
JavaScript Break and Continue
JavaScript Switch Statement
JavaScript JSON
Error handling in JavaScript
In this part we will discuss JavaScript JSON. JSON full form is JavaScript Object Notation. JSON is an Object type. This Object type very popular in JavaScript. Basically, we pass the json data and receive the json data from our programming. When we develop the real time application then we work with JSON. JSON is very popular object. JSON is a lightweight data interchange format. JSON is language independent JSON is "self-describing" and easy to understand. Now given bellow the example code and explain the code:
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
//object JSON
var human = '{"employees":[' +
'{"firstName":"Farhan","lastName":"Sakib" },' +
'{"firstName":"Reza","lastName":"Karim" },' +
'{"firstName":"Tofile","lastName":"Ahmad" }]}';
obj = JSON.parse(human);
console.log(obj.employees[1].firstName + " " + obj.employees[1].lastName);
</script>
</body>
</html>
In this code we create the JSON object name as ‘employees’ then full object assigns into human variables. This ‘employees’ JSON data contain the three human details. Then we convert data using ‘JSON.parse’ function and print the one human first name and last name property using the ‘console.log’ method.
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