Frontend Interview Experience with EY - React JS Frontend Engineer

1. Brief introduction.
2. What will be the output of : 

const obj = { name: "A",
getName() {return this.name; }
};
const fn = obj.getName;
console.log(fn());

console.log("Start");
setTimeout(() => console.log("Timeout"), 0);
Promise.resolve().then(() => console.log("Promise"));
console.log("End");

3. What is a Promise in JavaScript? How do you resolve a Promise, and what are its use cases?
4. Write a promise method that resolves something.
5. Write a program to return an array of sorted, unique elements.

Input =  [2,1,3,4,2,5,4,6,7,4] ; Output = [1,2,3,4,5,6,7]

6. Create a ToDo list application with an input field and an add button. When the button is clicked, the entered item should be added to and displayed in a list. Each item should include a delete button to remove it from the list when clicked.

1. Brief introduction.
2. How you optimize a react application?
3. Which would you prefer for displaying products in a layout similar to an e-commerce website (e.g., Amazon), with 3 columns and multiple rows—Flexbox or CSS Grid? Why?
4. Aware of redux/redux toolkit (or any state management library)?
5. How to subscribe a store in redux ?
6. What is RTK query ? How is it different from axios & fetch.
7. how to make an app responsive.
8. Have you used React.memo , useCallback , useMemo or any other optimization technique and how you used these in your projects?
9. How you implemented code splitting in your project.
10. how to prevent re-creation of function passed to child component. How will you do it.
11. Create a todo list application with an input field and an add button.
When the button is clicked, the entered item should be added to and displayed in a list. 
If the item entered is a number, then multiply it with 5 and then display it in the list, but if it is a string, then show it as is.
Is the app ready to be deployed in production? If not, then tell the flaws.