react-events-and-state Flashcards
1
Q
What is the purpose of state in React?
A
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.
state is nothing but an object that is privately maintained inside a component,
and the this.state can be changed inside the component of a class
2
Q
How to you pass an event handler to a React element?
A
With JSX you pass a function as the event handler, rather than a string.
this.changeMessage}>subscribe
changeMessage is a method that is defined after the component on class
