Novac Technology Solutions React Js Frontend Developer Interview Questions and Answers

Fetching data using API in React JS

• Use the fetch() function to make an HTTP request to the API endpoint

• Handle the response using .then() and .catch() methods

• Parse the response data using JSON.parse()

• Update the state or display the data on the frontend

State, props, Redux, AsyncStorage are key concepts in React Native. Uploading a build on TestFlight involves creating an IPA file and using Xcode.

• State is used to manage data within a component and can be updated using setState.

• Props are read-only data passed from parent to child components.

• Redux is a state management library for managing application state.

• AsyncStorage is a simple, unencrypted, asynchronous, persistent...read more

Rxjs is a library for reactive programming using observables and subjects.

• Observables are streams of data that can be subscribed to.

• Subjects are both an observable and an observer, allowing for multicasting.

• Rxjs provides operators for manipulating and transforming data streams.

• Reactive programming allows for asynchronous and event-driven programming.

• Example: An observable can be created from an HTTP request and subscri