Frontend Developer Team Lead
Frontend Developer Team Lead Interview Questions and Answers
Q1. What are the differences between call, apply, bind, and asynchronous functions in JavaScript?
Q2. What are the different lifecycle methods in React?
React lifecycle methods manage component behavior during its lifecycle phases: mounting, updating, and unmounting.
componentDidMount: Invoked immediately after a component is mounted. Ideal for API calls. Example: fetchData() in componentDidMount().
componentDidUpdate: Invoked immediately after updating occurs. Useful for responding to prop or state changes. Example: if (prevProps.id !== this.props.id) { fetchData(); }
componentWillUnmount: Invoked immediately before a component...read more
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