React components has a built-in state object. The state object is where you store property values that belongs to the component . When the state object changes, the component re-renders.
Read moreWhy we use state in React instead of variable?
Though using state may seem similar to class variable but state is a protected keyword in React that refers to stored component data . The major difference between using class variables and state is updating data. Instead of manually reassigning the variable, you call this. setState() .
Read moreCan we directly update state in React?
One should never update the state directly because of the following reasons: If you update it directly, calling the setState() afterward may just replace the update you made. When you directly update the state, it does not change this.
Read moreHow can I update state of a component?
The steps are discussed below.
Read moreWhat is state and stateless in React?
Stateful and Stateless Components In React, a stateful component is a component that holds some state. Stateless components, by contrast, have no state. Note that both types of components can use props. In the example, there are two React components.
Read moreWhat is pros and state in react JS?
While both hold information that influences the output of render, they are different in one important way: props get passed to the component (similar to function parameters) whereas state is managed within the component (similar to variables declared within a function).
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