What is react? React is a popular declarative, efficient, and flexible JavaScript library for building user interfaces. It lets you compose complex UIs from small and isolated pieces of code called {components}. Create React App npx create-react-app my-app cd my-app npm start React Components React is called Component. Basically, component…

· JavaScript Expression — Expression is any valid unit of code that resolves to a value. The expression x = 5 is an example of the first type. This expression uses the = operator to assign the value seven to the variable x. The expression itself evaluates to Five. 7 + 3 is an…

Array.Slice () The Slice() method returns a shallow copy of a portion of an array into a new array object selected from start to end where start and end represent the index of items in that array. The original array will not be modified. JavaScript Example Array Slice () const…