Accenture Web Designer & Frontend Developer Interview Questions and Answers

MCQ question for frontend

Q1. For ask about background
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Q2. Project skills education workong
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Q1. What is Pure function?
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A pure function is a function that always produces the same output for the same input and has no side effects.
• Always returns the same output for the same input

• Does not modify any external state or variables

• No side effects, such as network requests or console logs

• Easier to test and reason about
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Q2. What is redux? Explain it with example
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Redux is a predictable state container for JavaScript apps.
• Redux is a state management tool commonly used with React.

• It helps in managing the state of an application in a predictable way.

• Redux stores the state of the application in a single immutable state tree.

• Actions are dispatched to update the state, and reducers specify how the state changes in response to actions.

• Example: const initialState = { count: 0 }; const ...read more
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Q1. How to send the data from child to parent component?
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Data can be sent from child to parent component in React by using callback functions.
• Use callback functions to pass data from child to parent component

• Define a function in the parent component and pass it as a prop to the child component

• Call the function in the child component with the data as an argument
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Q2. What is closure?
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Closure is the combination of a function bundled together with references to its surrounding state.
• Closure allows a function to access variables from its outer scope even after the outer function has finished executing.

• It helps in maintaining state in functional programming.

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVar); }; }
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