React React is a javascript library. It is an open-source, frontend, and building user interface. It gives a better user experience and better developer experience and especially for single-page applications. Recently it is the most popular javascript library. React first deployed on Facebook’s newsfeed in 2011 and on Instagram.com in 2012…

Primitive Data type Javascript has two data types. One is a primitive value and other is Reference value. List of Premitive value is string,number,boolean,null,undefined,symble(es6).On the other hand List of Reference value is object,array,function,date. Primitive value is immutable.when primitive value create it does not change. That means if you change the primitive value you…

Array what is array?. An array consists of one or more data. Array is a data structure where we can store multiple data. Now the question that come to your mind why we need array?. If we have single data we can store easily put in a data variable. But If we…