Quince Interview Questions, Process, and Tips

Q1. Polyfill input out questions
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Q2. Implement debouncing
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Q3. Performce optimization
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Q4. React hooks explanation
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React hooks are functions that let you use state and other React features without writing a class.
• React 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 ...read more
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JavaScript coding round

Q1. JavaScript Event loop
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Q2. Browser rendering process
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Browser rendering process involves multiple steps from parsing HTML to displaying content on the screen.
• HTML parsing: Browser parses HTML markup to create the Document Object Model (DOM).

• CSS parsing: Stylesheets are parsed to create the CSS Object Model (CSSOM).

• Render tree construction: DOM and CSSOM are combined to create the render tree.

• Layout: The render tree is laid out to determine the position and size of each el...read more
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Q1. Find a target element in a sorted array
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Binary search algorithm can be used to find a target element in a sorted array.
• Implement binary search algorithm to efficiently find the target element in a sorted array.

• Compare the target element with the middle element of the array and adjust the search range accordingly.

• Continue dividing the search range in half until the target element is found or the search range is empty.
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Q2. From the given list of strings, find the first k most occurring strings
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Find the first k most occurring strings from a given list
• Use a hashmap to store the frequency of each string

• Sort the hashmap based on frequency in descending order

• Return the first k keys from the sorted hashmap
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Q1. Dutch national flag algorithm
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Dutch national flag algorithm is used to sort an array of 0s, 1s, and 2s in linear time complexity.
• Initialize three pointers: low, mid, high

• Iterate through the array and swap elements based on their values

• Low pointer points to the start of 0s, mid pointer points to the start of 1s, high pointer points to the end of 2s
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