MongoDB is a document-oriented database used to store and process data in the form of documents.MongoDB provides some basics but essential operations that we can easily interact with MongoDB servers. The basics of operation are  Document: Documents are basically just a…

React Context API According to the React docs, Context API provides a way to pass data through the component tree from parent to child components, without having to pass props down manually at each level. This new API solves one major problem–prop drilling import Re…

Truthy: A truthy value is a value that is considered true when encountered in a Boolean context. Falsy: A falsy value is a value that is considered false when encountered in a Boolean context. List of falsy values in JavaScript false null undefined 0 NaN '', &…

Arrow funtion sometimes called fat arrow function. it intorduce in 2015. Fat arrow function is more concise syntax for writing function than regular function.  Following are the main differences: Syntax Arguments binding Use of this keyword Using a new keyword No dup…

Today we will learn some javascript methods. These methods is handy but useful. if you are new in javascript that might be helpful for you.  Array method 1. map() map() method return new array. The returned array length same as original array. we can assume as a for…