Najmul Hasan – Medium

Dec 23, 2021

MongoDB CRUD Operations:

CRUD Stands for Create, Read, Update, and Delete. Create Operation: Create operation adds a new object or data to a database collection. If the database collection does not exist, then it will create a new collection and insert the object or data in the database collection. In MongoDB there have two methods…

1 min read

Dec 22, 2021

Some Concepts About React Js

React is an open-source javascript library that is used to make the user interface single page application. It is used for developing complex and interactive web and mobile applications. 1. Virtual Dom: Virtual dom is an important concept of react. It makes react more efficient in work. When a react…

2 min read

Dec 21, 2021

All you need to know about JavaScript Scope.

Scopes In Javascript : Scope decides what variable or function or object can be accessible In Javascript, scope are three types, 1) Global scope. 2) Local scope or Function scope. 3) Block scope. Global scope: Variables that are declared outside of a function or are not bounded by curly bracket…

2 min read

All you need to know about JavaScript Scope.

Dec 21, 2021

String In JavaScript

Strings: Strings is one kind of data type used in programming. It is used to represent the text. Any kind of text is considered as a string. Let AnimalName = “Tiger” Here the ‘Tiger’ is a string type data in AnimalName variable. …

2 min read

Dec 19, 2021

What The Heck is CSS Specificity?

CSS Specificity: Specificity is one of the most important things for a developer. Sometimes when we apply the style in CSS but it doesn’t apply this happens for specificity. Now the question is what is Specificity!? CSS Specificity is a special ruleset that decides or determines which style should be…

CSS

3 min read