Yeasitech Interview Questions and Answers

Promises are objects representing the eventual completion or failure of an asynchronous operation. They differ from callbacks by allowing better handling of asynchronous operations.

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

• Callbacks are functions passed as arguments to another function to be executed later, while promises provide a more structured way to handle ...read more

TypeScript offers static typing, better code organization, improved tooling support, and easier maintenance compared to JavaScript.

• Static typing helps catch errors during development

• Better code organization with interfaces, classes, and modules

• Improved tooling support with features like code navigation and refactoring

• Easier maintenance due to clearer code structure and type checking

• TypeScript can be transpiled to JavaS

I use browser developer tools, console.log, performance profiling, and code review for debugging and optimizing JavaScript performance.

• Utilize browser developer tools like Chrome DevTools for debugging and profiling

• Use console.log statements to log values and debug code

• Perform performance profiling to identify bottlenecks and optimize code

• Conduct code reviews to identify potential performance issues and suggest improve