react why update state with a function code example

Example 1: update state in react

You have to use setState() for updating state in React
{
  hasBeenClicked: false,
  currentTheme: 'blue',
}

setState({
	hasBeenClicked: true
});

Example 2: reactjs update state example

{
  hasBeenClicked: false,
  currentTheme: 'bluesss',
}s