Have you used typescript before?
React Js Developer Interview Questions
538 react js developer interview questions shared by candidates
Basic React questions like- 1. Working of Virtual DOM. 2. Working of hooks. 3. controlled/uncontrolled events. 4. React Fragments etc... 5. Fetching data from an API endpoint.
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Basics of Reactjs, controlled and uncontrolled components, Hooks , HOC, Refs
Explain about class components and functional components
Most probably first round will be focused on Javascript and coding of any string or array based questions will be asked.
1. Solve react questions 2. react performance related questions 3. code related questions like how hooks work
In depth questions of Javascript : object, es6 features. coding string related question. React : hooks , lifecycle , redux , HTML & CSS : basics but deep
in package.json we have tilt sign and cap sign for package name: version what the signs indicate
- How do you make issue queries/mutations to a graphql server - how do you create graphql server ? What things you need ? - What is directive in graphql ? What is Fragment in GraphQL ? - How do you write unit tests for your Queries/Mutation (on server side) - TypeScript basics - Partial in TS - Decorators - union & discriminating unions - What are Generics in TS ? simple example - useCallback vs useMemo - call parent func from child component in React
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