Recro Interview Questions, Process, and Tips

I recently attended the First round they gave a coding test in the hacker rank platform.

1. 10 MCQs
2. 2 programs
total 45 mins

1. get the binary bits between these numbers ranging from 3 to 9. Find how many ones are present in that if the 1's count value is greater the last digit return the last number otherwise print the 1's count.
2. Find the minimum operation in the array

Q1. Technical questions from your skills
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Q2. Python basics, OOPS questions, and Django framework basics, Algo & data structures
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Q3. Class, objects, inheritance
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Q4. List, tuples, functions, list comprehension
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Q5. Django file structure, architecture
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Hello world dummy text

Q1. What is Closure in js.
Ans. 
Closure in JavaScript is the combination of a function and the lexical environment within which that function was declared.
• Closure allows a function to access variables from its outer scope even after the outer function has finished executing.

• It is created whenever a function is defined within another function, and the inner function has access to the outer function's variables.

• Closure is commonly used in event handler...read more
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Q2. What is hoisting in js
Ans. 
Hoisting is a behavior in JavaScript where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable declarations are hoisted to the top of their scope, but not their assignments.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.
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Q1. Basic conceptual questions related to Android, Kotlin
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Q1. Questions related to nodejs and javascript and one question based on DSA on linked list
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Leetcode medium level

Q1. Hashmap based ,frequency counter
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Q2. Binary search based question
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LLD Round ,Java Oops based

Q1. Project overview
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Q2. Scenario based question
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Medium 2 DSA questions and few mcqs

Q1. Basics of Js and React
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Q2. Problem solving questions around JS
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Q3. Debounce technique in react
Ans. 
Debounce technique in React helps in limiting the number of times a function is called.
• Debounce is used to delay the execution of a function until after a certain amount of time has passed without it being called again.

• It is commonly used in scenarios like search bars where you want to wait for the user to finish typing before making an API call.

• Example: Using lodash debounce function - debounce(handleSearch, 300)
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