Day01.txt

1).Write a blog on Difference between HTTP1.1 vs HTTP2

Multiplexing: HTTP/1.1 loads resources one after the other, so if one resource cannot be loaded, it blocks all the other resources behind it. 
In contrast, HTTP/2 is able to use a single TCP connection to send multiple streams of data at once so that no one resource blocks any other resource. 
HTTP/2 does this by splitting data into binary-code messages and numbering these messages so that the client knows which stream each binary message belongs to.

Server push: Typically, a server only serves content to a client device if the client asks for it. However, this approach is not always practical for modern webpages, which often involve several dozen separate resources that the client must request. 
HTTP/2 solves this problem by allowing a server to "push" content to a client before the client asks for it. 
The server also sends a message letting the client know what pushed content to expect – like if Bob had sent Alice a Table of Contents of his novel before sending the whole thing.

Header compression: Small files load more quickly than large ones. 
To speed up web performance, both HTTP/1.1 and HTTP/2 compress HTTP messages to make them smaller. 
However, HTTP/2 uses a more advanced compression method called HPACK that eliminates redundant information in HTTP header packets. 
This eliminates a few bytes from every HTTP packet. Given the volume of HTTP packets involved in loading even a single webpage, 
those bytes add up quickly, resulting in faster loading.






2).Write a blog about objects and its internal representation in Javascript?

Objects, in JavaScript, is it’s most important data-type and forms the building blocks for modern JavaScript. These objects are quite different from JavaScript’s primitive data-types(Number, 
String, Boolean, null, undefined and symbol) in the sense that while these primitive data-types all store a single value each (depending on their types).

Objects are more complex and each object may contain any combination of these primitive data-types as well as reference data-types.
An object, is a reference data type. Variables that are assigned a reference value are given a reference or a pointer to that value. 
That reference or pointer points to the location in memory where the object is stored. The variables don’t actually store the value.

Loosely speaking, objects in JavaScript may be defined as an unordered collection of related data, of primitive or reference types, 
in the form of “key: value” pairs. These keys can be variables or functions and are called properties and methods, 
respectively, in the context of an object.

For Eg. If your object is a student, it will have properties like name, age, address, id, etc and methods like updateAddress, updateNam, etc.