How to write high quality code?

Prohibited in coding(Haram Programming). Check if you are doing any of these.

•Writing a large function with even larger classes: Keep you functions below 30 line and you class below 200 lines. •Storing password in plain text in database: Always hash with a salt. Don't use MD5, it's compromised. •Returning a list from the server without paging: Use a page number and page size parameter. •Sorting or searching on the client side: Otherwise its sorts the current page only. •Querying more columns than needed: Slows down the query and increase data transfer to the client. •Not Indexing the Database: Makes your query super slow. •Not logging on Server side code: Without log when you code is deployed you will have no way to know what went wrong. Use a logging framework. •Not using dependency injection: Ensures decoupled maintainable architecture. •Not using source control: You cannot collaborate, leaves you at the mercy of your HDD. •Not localizing UI text: Makes your life hell when the customer says he needs it in German.

Collected from Linkedin post of Topu Newaz Sir: