JSON Learning notes __js

JSON Syntax rules

The JSON syntax is a subset of the JavaScript object representation syntax.

• Data in name/value pairs

• Data separated by commas

• Curly Braces Save objects

square brackets to save an array

JSON value

The JSON value can be:

• Number (integer or floating-point)

• String (in double quotes)

• Logical value (TRUE or FALSE)

• Array (in square brackets)

• Objects (in curly braces)

NULL

Jsonobject = {

"Employees": [

{"FirstName": "John", "LastName": "Doe"},

{"FirstName": "Anna", "LastName": "Smith"},

{"FirstName": "Peter", "LastName": "Jones"}

],

"Employees2": [

{"FirstName": "John", "LastName": "DOESDGD"},

{"FirstName": "Anna", "LastName": "Smith"},

{"FirstName": "Peter", "LastName": "Jones"}

]

}

In the example above, the object "Employees" is an array that contains three objects.

Use method: Jsonobject.employees[0].lastname result is Doe