Oriental Port and Allied Services Corporation Interview Questions and Answers

Closures are functions that have access to variables from their outer scope. Promises are objects used for asynchronous programming in JavaScript.

• Closures are created when a function is defined inside another function and the inner function has access to the outer function's variables.

• Closures allow for data encapsulation and private variables in JavaScript.

• Promises are used to handle asynchronous operations and provide a way to handle success or failure of those operations.

• P...read more

Delete a node from a linked list given its reference

• Set the previous node's next pointer to the current node's next pointer

• Free the memory allocated to the current node

State management in functional components involves using hooks such as useState and useEffect.

• useState hook is used to manage state in functional components

• useEffect hook is used to handle side effects and update state

• React Context API can be used for global state management

• Redux can also be used for state management in functional components

I am familiar with Java, Python, and C++.

• Proficient in Java with experience in developing web applications using Spring framework

• Comfortable with Python for data analysis and scripting

• Familiar with C++ for competitive programming and algorithm development

Find the Nth node from the end of a linked list.

• Traverse the linked list and count the number of nodes.

• Calculate the position of the Nth node from the start.

• Traverse the linked list again and return the Nth node from the start.