Coforge UI Developer Interview Questions and Answers

Q1. What is closure?
Ans. 
Closure is a function that has access to its own scope, as well as the scope in which it was defined.
• Closure allows a function to access variables from its outer function even after the outer function has finished executing.

• It helps in maintaining state in asynchronous operations.

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVar); }; }
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Q2. Define hooks in react?
Ans. 
Hooks in React are functions that let you use state and other React features without writing a class.
• Hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• Custom hooks are reusable functions that can contain log...read more
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Basic questions on javascript

Q1. Angular related questions, Change detection strategy, View encapsulation, Rxjs Operators & Javascript basic questions
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