Logic Square Interview Questions and Answers

Q1. React infinite counter without any event starts from 0 and increment in every second to +1.
Ans. 
Use setInterval to increment counter by 1 every second in React.
• Use useState to store the counter value.

• Use useEffect to start the interval and clean it up on component unmount.

• Increment the counter by 1 every second using setInterval.
Answered by AI
Add your answer
Q2. Rearrangement of an array [1,0,2,4,0,12] output should be [1,2,4,12,0,0]
Ans. 
Rearrange an array by moving all zeros to the end while maintaining the order of non-zero elements.
• Create a new array to store non-zero elements

• Iterate through the original array and add non-zero elements to the new array

• Count the number of zeros in the original array and add them to the new array at the end
Answered by AI
Add your answer

Easy test simple apptitude questions. And then some English grammar questions.

We got four coding questions 2 of them are Javascript questions and two are react and vanilla js and we have to submitted within 48 hrs.

Q1. Tell me about your self and responsibilities
Add your answer

Q1. What's your responsibilities in last organisation
Add your answer

Questions was divided into 3 categories
1. Reason
2.english
3.Technical

Q1. Oops Concept abstract class
Ans. 
An abstract class in OOP serves as a blueprint for other classes, allowing for shared methods and properties while preventing instantiation.
• An abstract class cannot be instantiated directly.

• It can contain abstract methods (without implementation) that must be implemented by derived classes.

• Example: An abstract class 'Animal' with an abstract method 'makeSound()'.

• Concrete classes like 'Dog' and 'Cat' must implement 'mak...read more
Answered by AI
Add your answer
Q2. Overloading, overriding
Add your answer
Q3. Array string inheritance
Add your answer
Q4. Encapsulation call by value
Ans. 
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
• Encapsulation helps in hiding the internal state of an object and only exposing necessary functionalities.

• In encapsulation, the variables of a class are hidden from other classes and can only be accessed through the methods of their current class.

• Encapsulation allows for better control over the data by preventing direc...read more
Answered by AI
Add your answer