What is IPv4 IP Address?
In Computer Networking understand the IP or Internet Protocol Address is crucial. If you are a Backend Developer or DevOps Engineer this is essential topic to understand.
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Undo or Discard – git commands
Most of the time we need to undo something that we changed in our code. In this tutorial we will learn commands of how to undo something.
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A quick overview of JavaScript Engine
In this post we will understand the basics of JavaScript Engine.
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Prevent unnecessary re-rendering when using Context API
In this post we are going to prevent an unnecessary re-rendering when using Context API. Context API is great but we need to be aware of some limitations, this post we will understand one of the limitation which is unnecessary re-rendering of Child Components.
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Testing events with react testing library
In this post we are going to learn how to test (unit) events in a react application with react-testing-library.
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CORS – Cross Origin Resource Sharing
CORS is one of the most important topic when developing Web Application.
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Understanding MongoDB Modifiers
Recently I’ve been working on a project where I needed to use lots of modifiers. So in this post you will learn about $inc, $set, $push, $addToSet and $each modifiers.
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ডাইনামিক মেমোরি ম্যানেজমেন্ট সিপ্লাসপ্লাস
আমরা এই পোস্টে সিপ্লাসপ্লাস ল্যাংগুয়েজে ডাইনামিক মেমোরি ম্যানেজমেন্ট কিভাবে কাজ করে দেখব।
ডাইনামিক মেমোরি ম্যানেজমেন্ট সিপ্লাসপ্লাস Read More »
Exploring Promise.all() and Promise.allSettled()
In this post we will learn about Promise.all() and Promise.allSettled() with example.
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What is JSON Web Token?
JSON Web Token or JWT is an authorization technique. It is for creating secure web applications.
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JavaScript Modules
A module is a reusable piece of code that we can use in our application. We will learn two kinds of module system.
JavaScript Modules Read More »
Understanding the HTTP Methods
HTTP defines set of methods, each of them indicates specific action for a resource.
Understanding the HTTP Methods Read More »
Pass FormData object from Client to Server
We will learn how to pass FormData from Client side using React to Server side using Express.js
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JavaScript .sort() method
JavaScript has a built-in sort prototype method. Which can be used to sort elements of an array. When we call .sort() method of an array of numbers or strings JavaScript automatically sort the array.
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Builder Design Pattern
Builder Design Pattern is a design pattern, which is used to create object from a complex or from a general object.
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Understanding the Hash Table
In Computer Science, a Hash Table is a Data Structure. There are many data structure available such as Stack, Queue, Linked List, Set. Hash Table is another one which stores data in an associative manner.
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Create a simple Compiler with JavaScript
In this post we are going to make a small compiler with JavaScript. We will start by understanding what compiler is, phases of compilation then we will make a simple compiler.
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Understanding the big-O with JavaScript
Finding a complexity for a program is always an important task. It gives us clear indication of how much slower or faster our program will get when you give more data input at it.
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Pure & Impure Function
In Functional JavaScript a Pure Function is a function that doesn’t depend on anything outside of it’s scope nor modify it.
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Avoid Prop Drilling using Composition
In react when we pass a props down to its children, we like to use Context/Redux, this is not wrong but we don’t need to use this every time if parent has a small amount of children or child components.
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