Common design patterns

Recently, my dad retired and found comfort in his passion of cooking. He has his own set of spices that he does not even share with my mom. From chicken to chickpeas, whatever dishes he prepares have a typical hint of his signature masala mix. He argues that the flavor is not about the spices he uses, but the pattern he applies to mix his spices while designing his recipes.

So, what is a design pattern? In software engineering parlance, it is generally a piece of pseudo-code that represents a generic solution that can be reused while developing applications to avoid reinventing-wheel scenarios. A common example would be the functionality of passcode-based user-authentication. Most applications require this basic functionality and they are almost similar in design. A user has to first register with the application. The application then sends an OTP or confirmation link to set up up a new passcode and registers a new user. Once a registered user has to log in, they have...