What is a state in reactjs and how is it used?
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What is the second argument that can optionally be passed to setState and what is its purpose?
Explain the significance of keys in react?
Explain the limitations of react?
What are class based component?
What are the different phases of react component’s lifecycle?
What is the purpose of render() in react?
What are react component lifecycle methods?
What is the difference between React Component and React Element?
How it is different from other front end language?
How can you embed two or more components into one?
What do you understand from “in react, everything is a component.”
How do you pass data from child to parent component?