Incubyte Backend Developer Interview Questions and Answers

Find pairs from list whose sum is equal to target

• Iterate through the list and for each element, check if the target minus the element exists in a hashmap

• If it exists, add the pair to the result list

• If it doesn't exist, add the current element to the hashmap

I chose Flask over Django and FastAPI due to its simplicity, flexibility, and ease of use for smaller projects.

• Flask is lightweight and minimalistic, making it easier to set up and use for smaller projects.

• Flask allows for more flexibility in terms of project structure and customization compared to Django.

• Flask is well-suited for rapid prototyping and smaller applications where simplicity is key.

• Django, on the other ha...read more

Flask request and response block code snippet

• Use Flask's request object to access incoming request data

• Use Flask's jsonify function to create a JSON response

• Handle different HTTP methods like GET, POST, etc. in the route function

ORM stands for Object-Relational Mapping, a programming technique for converting data between incompatible type systems in object-oriented programming languages.

• ORM is used to map objects from an application to tables in a relational database.

• It simplifies data manipulation by allowing developers to work with objects instead of SQL queries.

• Popular ORM tools include Hibernate for Java, Entity Framework for .NET, and Seq

Use ORM code to select item from a table in database.

• Use ORM query methods like find(), findOne(), or where() to select items from a table.

• Specify the table name and any conditions for the selection.

• Example: User.find({ where: { id: 1 } }) will select a user with id 1 from the User table.

Node.js promises are a way to handle asynchronous operations, while async/await is a syntax for writing asynchronous code in a synchronous manner.

• Promises are objects that represent the eventual completion (or failure) of an asynchronous operation.

• Async/await is a syntactic sugar built on top of promises, making asynchronous code look more like synchronous code.

• Async functions return a promise, which allows you to use ...read more