State React

1. What is a state in React?
2. What is state and props in React?
3. Why should we use state in React?
4. What is hooks and state in React?

What is a state in React?

What Is 'State' in ReactJS? The state is a built-in React object that is used to contain data or information about the component. A component's state can change over time; whenever it changes, the component re-renders.

What is state and props in React?

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).

Why should we use state in React?

This is a way to “preserve” some values between the function calls — useState is a new way to use the exact same capabilities that this.state provides in a class. Normally, variables “disappear” when the function exits but state variables are preserved by React.

What is hooks and state in React?

The React useState Hook allows us to track state in a function component. State generally refers to data or properties that need to be tracking in an application.