Introduction to react JS 1. React JS React Js is defined as a JavaScript library for building user interface. It’s not a framework. Types of React JS · Class base · Function base Class base: This is a old version of React JS. Class base react js is more difficult as a begginer. …

1. JavaScript data Types There are six basic data types in javaScript that are main three part such as · Primitive data types: String, Number and Boolean · Composite data types: Array, Object and Function. · Special data types: Undefined and Null 2. Error handling “try and catch” How to work try and catch in javaScript -> · First, run…

1. JavaScript array find() method Const numbers = [9, 12, 16, 20, 7, 8, 17, 15] how to get value like 16 in the array? Example: Const getOne = numbers.find( num => element > 15 ); Console.log(getOne) You can get output 16 2. JavaScript array filter() method Const fruits =…

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