Author: mashiurrahman99

  • Maximize web Performance: Overcome JavaScript Threading Limitations with Web Workers

    Why? Web Workers: A solution for overcoming JavaScript’s single-threaded limitations. Running JavaScript tasks in background threads, separate from the main browser thread which is responsible for rendering the UI and handling user interactions. So Its possible to run heavy task in multiple process and at the same time keep the ui responsive. How? The structure…

  • Simulate Bird Flocking Behavior with pygame: Algorithm and Code Explained

    Bird flocking is a wonderful example of how simple behaviors can lead to complex, beautiful patterns in nature. We’ll learn the key principles behind this flocking behavior and write a python program to simulate this wonderful phenomenon. The principles Bird Flocking Simulation Algorithm Setting Up the Simulation Each Frame of the Simulation The pygame example…

  • MongoDB Indexing Basics with Python

    MongoDB Improve performance Why you should use Indexing in Databases Faster Searches Indexes act as efficient lookup structures, enabling rapid retrieval of data matching query criteria. Optimized Query Execution By using indexes, databases can strategically navigate the data path, minimizing processing time for queries. Reduced Disk I/O Indexes allow the database to locate data directly,…

  • How to implement json web token (jwt) in flask

    What is json web token? JSON Web Token (JWT) is like a digital ID card for websites and apps. It’s often issued after a successful login and securely tells a website about the user and their accessibility Secure Cookies also do the same thing. but there is some core differences Feature JSON Web Token (JWT)…

  • How to create, read and write csv file from python

    First Lets talk about csv Its a plain text format which comes from (Comma Separated Values) Most spreadsheet application supports this. You can open and edit it from excl, Libra office cal , google sheets and other spread sheet application, also supported by most of the programming language. For simplicity and flexibility often used in…

  • Display Matplotlib Plots in Pygame: A Step-by-Step Guide

    Our tasks for this Import necessary module import sys import pygame import matplotlib from pygame.locals import * import matplotlib.pyplot as plt from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas This code imports a tool from Matplotlib that lets you save plots as image files (like PNG or JPG). Use this for…

  • How to take screenshot in pygame

    We can take screenshot in pygame with pygame.image.save(screen, “screenshot.png”) And this is the example program for this If we directly add this in the pygame loop that will continuously take the screenshot. To solve this we will add a button so when the user click the button the program will take the screenshot. This more…

  • Difference between statement and keyword in programming

    Statement A single, complete instruction in a programming language that tells the computer to perform a specific action.Examples: assigning values, making decisions, controlling loops, displaying output. Keyword A word reserved by the programming language that has a predefined meaning and purpose.Examples: words like if, else, for, while, int, class that control logic and define data…

  • How to generate requirements.txt in python

    A requirements.txt file is essential for managing Python project dependencies. It ensures everyone working on your project has the correct libraries installed for development and deployment. The simplest way or automatically generate requirements.txt is using piprequs library. It will generate requairements.txt file based on the imports of your project. First install the library pip install…

  • How to use try except in python

    Python’s exception handling system lets you write code that can deal with unexpected errors The structure Explanation of the structure: The try…except structure in Python aims to prevent programs from crashing by providing a way to handle exceptions. This allows you to continue execution or provide meaningful error messages instead of the program terminating unexpectedly.…