Python: Lambda Function
Start with the keyword “lambda”. Then put the list of parameters, which are separated by commas. Put colon(:) after that. Finally, write the return value or expression. Only one expression can be here, which is returned.
Python function: id() [get object identity]
id() function returns an integer, that is an unique identifier for the object. The id will be unique, and stays the same for the object lifetime.
Python: Boolean [Data Type]
Boolean represents a value that can be either true or false. Everything that is evaluated to a boolean can be one of 2 values- True, False
Python: String Padding
There are 2 main ways we can add padding to a string in Python- Using string formatting functions, Using f-strings.
Laravel: Save created_by, and updated_by User Information
To save created_by and updated_by user information in a laravel model- first create migrations for the the new fields, and then register events on model boot.
Design Pattern: Facade Pattern in Python
Facade works as an abstraction layer, over the underlying complex system. The client communicates with the facade, and the facade communicates with the subsystems. In this article, we discuss the implementation of the Facade Pattern in Python.
Design Pattern: Decorator Pattern in Python
Decorator pattern is used to add some additional responsibilities to an object dynamically. We can add some new tasks, checking, etc. before and/or after the original functionality of the the object. Using the Decorator pattern we can extend the behavior, with property transparency, and without affecting other objects. In this article, we discuss the implementation of the Decorator Pattern in Python.
Python: Decorator
A decorator is a function that accepts a function and returns a function. We can perform the additional steps of operation(that we want to add before/after the original function), in the implementation of the decorator.
Design Pattern: Composite Pattern in Python
In composite pattern we use the same interface for the same object and composition of objects. This way we can treat and use the individual item object and item list/composition of object exactly the same way. In this article, we discuss the implementation of the Composite Pattern in Python.
Design Pattern: Bridge Pattern in Python
Bridge pattern is used to separate/decouple the abstraction from the implementation, so that we can change those separately. The bridge pattern works as the communication for those two separate parts. In this article, we discuss the implementation of the Bridge Pattern in Python.