window.onload Vs Document Ready

Launching Code on Document Ready

To ensure that their code runs after the browser finishes loading the document, many JavaScript programmers wrap their code in an onload function:

Connection Pooling

When we want a front-end to communicate with backend, we need to establish connection between them.

For this:

 1. Database server has to create a socket and wait for the request to come.

2. Client will have to create a socket in its own process.

3. Client using its socket has to submit a request to server socket.

4. Sever socket should receive the request on existing client and shift’s the client to another new socket which has to be created freshly. This is done so that server main socket is free to receive request from another client(s).

Difference between IEnumerable and IQueryable

In LINQ   to query data from database and collections, we use IEnumerable and IQueryable for data manipulation. IEnumerable is inherited by IQueryable, hence it has all the features of it and except this, it has its own features. Both have their own importance to query data and data manipulation.