Rebaca Technologies Private Limited Interview Questions and Answers

Q1. Javascript clousers, hoisting,let var const.
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Q1. Machine coding round
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Q1. Sort an array of numbers
Ans. 
Sort an array of numbers in ascending order
• Use the built-in sort() method in JavaScript

• Pass a compare function to sort numbers in ascending order

• Example: [5, 2, 8, 1, 4] -> [1, 2, 4, 5, 8]
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Q2. How to recall/re-render the react component when ever a variable is changed
Ans. 
Use React's state management to trigger re-rendering of components when a variable changes
• Use state variables to store the value that triggers the re-rendering

• Update the state variable using setState() method whenever the variable changes

• React will automatically re-render the component when the state changes
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It's a 3-hour coding test. If you have some solid concepts of Java or C or C++ cracking the coding round won't be much of a headache.

Q1. They'll ask you to write a few codes on a paper.
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Q2. I was able to crack one of the two.
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Q1. 1. Multithreading 2.Complexity of algos 3. Lambda Expressions 4. Collection framework
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