4.0 module introduction

We will look more closely at the interaction user and event management user and we’ll take a look at the concept very large states in react applications but for the moment in the applications that we have built so far and with the knowledge we have acquired so far we can build only static applications or the state never changes where we always producing exactly the same you wanted to have interactive applications in order to react to the user’s click

and data entered by the user reactive for the application also exchanges when certain things happen in this module we will examine the management of user events such as clicks and then we will examine how we can make sure that this is who is visible on the screen changes and we reach a target state different and for that we will take a closer look the concept of state and react we will learn how we can manipulate the state and move from State A State B if we can and in general in this section we will learn more about some concepts keys.