React Js Coding Example For Interview
React.js Algorithm for Interview Coding Challenge
React Js Coding Example For Interview
React JS, a popular JavaScript library for building user interfaces, offers several advantages in coding interviews. Its declarative nature allows candidates to describe the UI state clearly and concisely, facilitating rapid development and reducing the risk of bugs. The component-based architecture promotes code reusability and modularity, simplifying the handling of complex functionalities. React's extensive documentation and vibrant community provide ample resources for candidates to demonstrate their research skills and stay abreast of the latest advancements.
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React JS Coding Example for Interview:
1 - Create a functional component that displays a greeting based on a prop:
js
const Greeting = ({name}) => {
return (
<h1>Hello, {name}!</h1>
);
};
2) Use the useState hook to manage state in a functional component:
js
const [count, setCount] = useState(0);
const handleClick = () => { setCount(count + 1 -; };
3) Create a reusable custom hook that manages form state:
js
const useForm = (initialState) => {
const [values, setValues] = useState(initialState);
const handleChange = (e) => {
setValues({ …values, [e.target.name]: e.target.value });
};
return [values, handleChange];
};
4) Use the useEffect hook to perform side effects in a functional component:
js
useEffect(() => {
console.log(`Count is now ${count}`);
}, [count]);
5) Create a React context to share data between components:
js
const MyContext = React.createContext();
const MyProvider = ({children}) => {
const [value, setValue] = useState('Initial value');
return (
<MyContext.Provider value={{value, setValue}}>
{children}
</MyContext.Provider>
);
};
6) Use React Router to navigate between pages:
js
import { BrowserRouter as Router, Route } from “react router dom”;
const MyComponent = () => {
return <h1>MyComponent</h1>;
};
const App = () => {
return (
<Router>
<Route exact path="/" component={MyComponent} />
</Router>
);
};
7) Implement authentication using React and Firebase:
js
import { getAuth, signInWithEmailAndPassword } from “firebase/auth”;
const auth = getAuth();
const signIn = async (email, password) => {
const userCredential = await signInWithEmailAndPassword(auth, email, password);
const user = userCredential.user;
return user;
};
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- Course Overview
- This course provides a comprehensive guide to React JS coding examples for interviews. It covers fundamental concepts, advanced techniques, and real-world application scenarios, equipping you with the skills and confidence to ace your React JS coding interviews.
- Course Description
- Master React JS coding techniques through comprehensive coding examples relevant to interview scenarios. Gain a deep understanding of essential concepts, best practices, and real-world use cases, enhancing your technical proficiency and confidence for React JS-based interviews.
- Key Features
- 1 - Comprehensive Tool Coverage: Provides hands-on training with a range of industry-standard testing tools, including Selenium, JIRA, LoadRunner, and TestRail.
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- 6) Data Visualization: Integrates tools for visualizing test metrics and results, enhancing data interpretation and decision-making.
- 7) Tool Integration: Teaches how to integrate testing tools into the software development lifecycle for streamlined workflows.
- 8) Project-Based Learning: Focuses on project-based learning to build practical skills and create a portfolio of completed tasks.
- 9) Career Support: Provides resources and support for applying learned skills to real-world job scenarios, including resume building and interview preparation.
- 10) Up-to-Date Content: Ensures that course materials reflect the latest industry standards and tool updates.
Benefits of taking our course
Functional Tools
1 - React.js: A popular JavaScript library for building interactive user interfaces. It offers a component based architecture, reusable code, and efficient rendering capabilities.
2) Create React App: A tool used to scaffold a React application. It provides a boilerplate with preconfigured settings and dependencies, allowing developers to focus on coding rather than setup.
3) ESLint: A linter that checks JavaScript code for potential errors and maintains consistent code formatting. It helps ensure code quality, prevent bugs, and improve readability.
4) Prettier: A code formatter that automatically formats JavaScript code according to a set of rules. It helps maintain consistent code style and reduces the need for manual formatting.
5) Github: A code hosting and collaboration platform. It allows developers to share code, track changes, and collaborate with others on projects.
6) Postman: A tool for testing API endpoints and sending HTTP requests. It allows developers to validate API behavior, generate code snippets, and mock server responses for testing purposes.
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- Complete surveys and other tasks.* Some sites offer points for completing surveys and other tasks.
- Be patient and consistent.* Earning points takes time and effort. Don't get discouraged if you don't see results immediately. Just keep participating and contributing to the community, and you'll eventually start to see your points add up.
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