Browser-Server Communication

Question 1

How can you pass data to the server?

Answer 1

1. Using “?param=value” chain after the server .address.

2. Using FormData interface.

Question 2

How can you convert any JavaScript object into a JSON string?

Answer 2

Use .stringify() method of JSON JavaScript object. Example:

var myArr = [1,2,"Hello"];
var jsonString = JSON.stringify(myArr);

JSON is a built-in JavaScript object that has only 2 methods for parsing and converting values to/from JSON format.

Question 3

How can you parse a string into a JSON object?

Answer 3

Use .parse() method of JSON JavaScript object.

JSON is a built-in JavaScript object that has only 2 methods for parsing and converting values to/from JSON format.