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ReactJS | State Management

ReactJS | State Management


Hello folks! welcome back to a new section of our tutorial on ReactJS. In this section of our tutorial on ReactJS, we will be studying about ReactJS State Management.

State management is one of the important features of any dynamic application. React gives a simple and flexible API to support state management in a React component. Let us learn how to maintain state in React application in this tutorial.

What is State?

React state represents the value of dynamic properties of a React component at a given instance. React makes available a dynamic data store for each component. The internal data represents the React component state and can be accessed via this.state member variable of the component. Every time the state of the component is changed, the component will re-render itself by calling the render() method along with the new site.

A simple example to better understand the state management is to analyse a real-time clock component. The primary job of clock component is to show the date and time of a location at the given instance.

As the current time changes every second, the clock component should maintain the current date and time in its state. As the state of the clock component changes each second, the clock's render() method will be called each second and the render() method shows the current time via its current state.

The simple representation of the state is as follows -

{ 
   date: '2020-10-10 10:10:10' 
}

Let us create a new Clock component in this tutorial.

Here,



Alright guys! This is where we are going to be rounding up for this tutorial. In our next tutorial, we will be studying about ReactJS State Management API.

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