Which of the following is a method to update state in class components in React?
- this.setState({})
- useState()
- updateState()
- this.state = {}
In class components in React, you can update state using the this.setState({}) method. This method allows you to modify the component's state and triggers a re-render. The other options are not valid ways to update state in class components. useState() is used in functional components, updateState() is not a built-in method, and directly modifying this.state is discouraged.
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