TCS Senior Software Engineer Interview Questions, Process, and Tips

Lambda function is an anonymous function used for short tasks. Threads allow for concurrent execution in a program.

• Lambda function is a concise way to define small functions without a name.

• Threads allow multiple tasks to run concurrently in a program.

• Lambda functions are often used in functional programming and for callbacks.

• Threads can improve performance by utilizing multiple cores of a CPU.

• Example of lambda function...read more

CI/CD stands for Continuous Integration/Continuous Deployment, a practice in software development to automate the process of testing and deploying code changes.

• CI/CD automates the process of integrating code changes from multiple developers into a shared repository.

• It includes automated testing to ensure that code changes do not break existing functionality.

• CI/CD also automates the deployment of code changes to product...read more

React Fiber is a complete rewrite of React's core algorithm for rendering UI components.

• React Fiber is designed to improve performance by allowing React to pause work and come back to it later.

• It enables features like async rendering, error boundaries, and more granular control over rendering priorities.

• Fiber reconciles the virtual DOM tree in a more incremental and interruptible way compared to the previous stack-base

React portal is a feature in React that allows rendering a child component into a different part of the DOM tree.

• Used for rendering a child component outside of its parent component's DOM hierarchy

• Helps in creating modals, tooltips, and other UI elements that need to break out of the parent's styling

• Maintains the component's state and lifecycle methods even when rendered in a different part of the DOM

Synthetic events in React are cross-browser wrappers around the browser's native events, providing consistent behavior.

• Synthetic events are used in React to handle events in a consistent manner across different browsers.

• They are created by React to wrap native browser events and provide additional functionality.

• Synthetic events have the same interface as native browser events but are normalized to work consistently acr